good introductions for a research paper

How to Write a Research Paper Introduction (with Examples)

How to Write a Research Paper Introduction (with Examples)

The research paper introduction section, along with the Title and Abstract, can be considered the face of any research paper. The following article is intended to guide you in organizing and writing the research paper introduction for a quality academic article or dissertation.

The research paper introduction aims to present the topic to the reader. A study will only be accepted for publishing if you can ascertain that the available literature cannot answer your research question. So it is important to ensure that you have read important studies on that particular topic, especially those within the last five to ten years, and that they are properly referenced in this section. 1 What should be included in the research paper introduction is decided by what you want to tell readers about the reason behind the research and how you plan to fill the knowledge gap. The best research paper introduction provides a systemic review of existing work and demonstrates additional work that needs to be done. It needs to be brief, captivating, and well-referenced; a well-drafted research paper introduction will help the researcher win half the battle.

The introduction for a research paper is where you set up your topic and approach for the reader. It has several key goals:

  • Present your research topic
  • Capture reader interest
  • Summarize existing research
  • Position your own approach
  • Define your specific research problem and problem statement
  • Highlight the novelty and contributions of the study
  • Give an overview of the paper’s structure

The research paper introduction can vary in size and structure depending on whether your paper presents the results of original empirical research or is a review paper. Some research paper introduction examples are only half a page while others are a few pages long. In many cases, the introduction will be shorter than all of the other sections of your paper; its length depends on the size of your paper as a whole.

Break through writer’s block. Write your research paper introduction with Paperpal’s Generative AI features

Table of Contents

What is the introduction for a research paper, what are the parts of introduction in the research, 1. introduce the research topic:, 2. determine a research niche:, 3. place your research within the research niche:, how to use paperpal to write the introduction section, frequently asked questions on research paper introduction, key points to remember.

The introduction in a research paper is placed at the beginning to guide the reader from a broad subject area to the specific topic that your research addresses. They present the following information to the reader

  • Scope: The topic covered in the research paper
  • Context: Background of your topic
  • Importance: Why your research matters in that particular area of research and the industry problem that can be targeted

good introductions for a research paper

Why is the introduction important in a research paper?

The research paper introduction conveys a lot of information and can be considered an essential roadmap for the rest of your paper. A good introduction for a research paper is important for the following reasons:

  • It stimulates your reader’s interest: A good introduction section can make your readers want to read your paper by capturing their interest. It informs the reader what they are going to learn and helps determine if the topic is of interest to them.
  • It helps the reader understand the research background: Without a clear introduction, your readers may feel confused and even struggle when reading your paper. A good research paper introduction will prepare them for the in-depth research to come. It provides you the opportunity to engage with the readers and demonstrate your knowledge and authority on the specific topic.
  • It explains why your research paper is worth reading: Your introduction can convey a lot of information to your readers. It introduces the topic, why the topic is important, and how you plan to proceed with your research.
  • It helps guide the reader through the rest of the paper: The research paper introduction gives the reader a sense of the nature of the information that will support your arguments and the general organization of the paragraphs that will follow. It offers an overview of what to expect when reading the main body of your paper.

A good research paper introduction section should comprise three main elements: 2

  • What is known: This sets the stage for your research. It informs the readers of what is known on the subject.
  • What is lacking: This is aimed at justifying the reason for carrying out your research. This could involve investigating a new concept or method or building upon previous research.
  • What you aim to do: This part briefly states the objectives of your research and its major contributions. Your detailed hypothesis will also form a part of this section.

Craft a compelling Introduction section with Paperpal. Try Now!

How to write a research paper introduction?

The first step in writing the research paper introduction is to inform the reader what your topic is and why it’s interesting or important. This is generally accomplished with a strong opening statement. The second step involves establishing the kinds of research that have been done and ending with limitations or gaps in the research that you intend to address. Finally, the research paper introduction clarifies how your own research fits in and what problem it addresses. If your research involved testing hypotheses, these should be stated along with your research question. The hypothesis should be presented in the past tense since it will have been tested by the time you are writing the research paper introduction.

The following key points, with examples, can guide you when writing the research paper introduction section:

  • Highlight the importance of the research field or topic
  • Describe the background of the topic
  • Present an overview of current research on the topic

Example: The inclusion of experiential and competency-based learning has benefitted electronics engineering education. Industry partnerships provide an excellent alternative for students wanting to engage in solving real-world challenges. Industry-academia participation has grown in recent years due to the need for skilled engineers with practical training and specialized expertise. However, from the educational perspective, many activities are needed to incorporate sustainable development goals into the university curricula and consolidate learning innovation in universities.

  • Reveal a gap in existing research or oppose an existing assumption
  • Formulate the research question

Example: There have been plausible efforts to integrate educational activities in higher education electronics engineering programs. However, very few studies have considered using educational research methods for performance evaluation of competency-based higher engineering education, with a focus on technical and or transversal skills. To remedy the current need for evaluating competencies in STEM fields and providing sustainable development goals in engineering education, in this study, a comparison was drawn between study groups without and with industry partners.

  • State the purpose of your study
  • Highlight the key characteristics of your study
  • Describe important results
  • Highlight the novelty of the study.
  • Offer a brief overview of the structure of the paper.

Example: The study evaluates the main competency needed in the applied electronics course, which is a fundamental core subject for many electronics engineering undergraduate programs. We compared two groups, without and with an industrial partner, that offered real-world projects to solve during the semester. This comparison can help determine significant differences in both groups in terms of developing subject competency and achieving sustainable development goals.

Write a Research Paper Introduction in Minutes with Paperpal

Paperpal is a generative AI-powered academic writing assistant. It’s trained on millions of published scholarly articles and over 20 years of STM experience. Paperpal helps authors write better and faster with:

  • Real-time writing suggestions
  • In-depth checks for language and grammar correction
  • Paraphrasing to add variety, ensure academic tone, and trim text to meet journal limits

With Paperpal, create a research paper introduction effortlessly. In this step-by-step guide, we’ll walk you through how Paperpal transforms your initial ideas into a polished and publication-ready introduction.

good introductions for a research paper

Step 1: Sign up on Paperpal and click on the Copilot feature, under this choose Outlines > Research Article > Introduction

Step 2: Add your unstructured notes or initial draft, whether in English or another language, to Paperpal, which is to be used as the base for your content.

Step 3: Fill in the specifics, such as your field of study, brief description or details you want to include, which will help the AI generate the outline for your Introduction.

Step 4: Use this outline and sentence suggestions to develop your content, adding citations where needed and modifying it to align with your specific research focus.

Step 5: Turn to Paperpal’s granular language checks to refine your content, tailor it to reflect your personal writing style, and ensure it effectively conveys your message.

You can use the same process to develop each section of your article, and finally your research paper in half the time and without any of the stress.

Craft accurate research paper introductions with Paperpal. Start writing now!

The purpose of the research paper introduction is to introduce the reader to the problem definition, justify the need for the study, and describe the main theme of the study. The aim is to gain the reader’s attention by providing them with necessary background information and establishing the main purpose and direction of the research.

The length of the research paper introduction can vary across journals and disciplines. While there are no strict word limits for writing the research paper introduction, an ideal length would be one page, with a maximum of 400 words over 1-4 paragraphs. Generally, it is one of the shorter sections of the paper as the reader is assumed to have at least a reasonable knowledge about the topic. 2 For example, for a study evaluating the role of building design in ensuring fire safety, there is no need to discuss definitions and nature of fire in the introduction; you could start by commenting upon the existing practices for fire safety and how your study will add to the existing knowledge and practice.

When deciding what to include in the research paper introduction, the rest of the paper should also be considered. The aim is to introduce the reader smoothly to the topic and facilitate an easy read without much dependency on external sources. 3 Below is a list of elements you can include to prepare a research paper introduction outline and follow it when you are writing the research paper introduction. Topic introduction: This can include key definitions and a brief history of the topic. Research context and background: Offer the readers some general information and then narrow it down to specific aspects. Details of the research you conducted: A brief literature review can be included to support your arguments or line of thought. Rationale for the study: This establishes the relevance of your study and establishes its importance. Importance of your research: The main contributions are highlighted to help establish the novelty of your study Research hypothesis: Introduce your research question and propose an expected outcome. Organization of the paper: Include a short paragraph of 3-4 sentences that highlights your plan for the entire paper

Cite only works that are most relevant to your topic; as a general rule, you can include one to three. Note that readers want to see evidence of original thinking. So it is better to avoid using too many references as it does not leave much room for your personal standpoint to shine through. Citations in your research paper introduction support the key points, and the number of citations depend on the subject matter and the point discussed. If the research paper introduction is too long or overflowing with citations, it is better to cite a few review articles rather than the individual articles summarized in the review. A good point to remember when citing research papers in the introduction section is to include at least one-third of the references in the introduction.

The literature review plays a significant role in the research paper introduction section. A good literature review accomplishes the following: Introduces the topic – Establishes the study’s significance – Provides an overview of the relevant literature – Provides context for the study using literature – Identifies knowledge gaps However, remember to avoid making the following mistakes when writing a research paper introduction: Do not use studies from the literature review to aggressively support your research Avoid direct quoting Do not allow literature review to be the focus of this section. Instead, the literature review should only aid in setting a foundation for the manuscript.

Remember the following key points for writing a good research paper introduction: 4

  • Avoid stuffing too much general information: Avoid including what an average reader would know and include only that information related to the problem being addressed in the research paper introduction. For example, when describing a comparative study of non-traditional methods for mechanical design optimization, information related to the traditional methods and differences between traditional and non-traditional methods would not be relevant. In this case, the introduction for the research paper should begin with the state-of-the-art non-traditional methods and methods to evaluate the efficiency of newly developed algorithms.
  • Avoid packing too many references: Cite only the required works in your research paper introduction. The other works can be included in the discussion section to strengthen your findings.
  • Avoid extensive criticism of previous studies: Avoid being overly critical of earlier studies while setting the rationale for your study. A better place for this would be the Discussion section, where you can highlight the advantages of your method.
  • Avoid describing conclusions of the study: When writing a research paper introduction remember not to include the findings of your study. The aim is to let the readers know what question is being answered. The actual answer should only be given in the Results and Discussion section.

To summarize, the research paper introduction section should be brief yet informative. It should convince the reader the need to conduct the study and motivate him to read further. If you’re feeling stuck or unsure, choose trusted AI academic writing assistants like Paperpal to effortlessly craft your research paper introduction and other sections of your research article.

1. Jawaid, S. A., & Jawaid, M. (2019). How to write introduction and discussion. Saudi Journal of Anaesthesia, 13(Suppl 1), S18.

2. Dewan, P., & Gupta, P. (2016). Writing the title, abstract and introduction: Looks matter!. Indian pediatrics, 53, 235-241.

3. Cetin, S., & Hackam, D. J. (2005). An approach to the writing of a scientific Manuscript1. Journal of Surgical Research, 128(2), 165-167.

4. Bavdekar, S. B. (2015). Writing introduction: Laying the foundations of a research paper. Journal of the Association of Physicians of India, 63(7), 44-6.

Paperpal is a comprehensive AI writing toolkit that helps students and researchers achieve 2x the writing in half the time. It leverages 21+ years of STM experience and insights from millions of research articles to provide in-depth academic writing, language editing, and submission readiness support to help you write better, faster.  

Get accurate academic translations, rewriting support, grammar checks, vocabulary suggestions, and generative AI assistance that delivers human precision at machine speed. Try for free or upgrade to Paperpal Prime starting at US$19 a month to access premium features, including consistency, plagiarism, and 30+ submission readiness checks to help you succeed.  

Experience the future of academic writing – Sign up to Paperpal and start writing for free!  

Related Reads:

  • Scientific Writing Style Guides Explained
  • Ethical Research Practices For Research with Human Subjects
  • 8 Most Effective Ways to Increase Motivation for Thesis Writing 
  • 6 Tips for Post-Doc Researchers to Take Their Career to the Next Level

Practice vs. Practise: Learn the Difference

Academic paraphrasing: why paperpal’s rewrite should be your first choice , you may also like, how to cite in apa format (7th edition):..., how to write your research paper in apa..., how to choose a dissertation topic, how to write a phd research proposal, how to write an academic paragraph (step-by-step guide), research funding basics: what should a grant proposal..., how to write an abstract in research papers..., how to write dissertation acknowledgements, how to write the first draft of a..., mla works cited page: format, template & examples.

Ertugrul Portakal

Apr 12, 2024

Writing a Research Paper Introduction (with 3 Examples)

Nail your research paper's introduction! Learn to captivate and inform readers from the start—our guide shows how!

Writing a Research Paper Introduction (with 3 Examples)

TABLE OF CONTENTS

A catchy and informative introduction is essential in academic writing, especially if you want your readers to have background information about your paper. However, writing an interesting and informative introduction can sometimes be a time-consuming and tiring process. If you don't know where to start when crafting an introduction, no need to worry - we've got you covered!

In this article, we will explain step by step what an introduction is in academic writing and how to write it!

Ready? Let's start!

  • An introduction is a paragraph that provides information about your entire paper and aims to attract and inform the reader.
  • Before writing an introduction or even starting your paper, you need to research academic sources.
  • The first one or two sentences of an introduction paragraph should be a hook to attract the reader's attention.
  • Afterwards, you need to prepare the reader for your argument by giving background information about your topic.
  • Finally, you should state your argument about your topic with a thesis statement.
  • If you are writing a longer paper, you can inform your readers about the map of your paper.
  • If you are looking for an AI assistant to support you throughout your writing process, TextCortex is designed for you with its advanced features.

What is an Introduction in a research paper?

In any academic writing, including essays and research papers, an introduction is the first paragraph that the reader will encounter. This paragraph should both attract the reader's attention and give them the necessary information about the paper. In any academic paper, the introduction paragraph constitutes 10% of the paper's total word count. For example, if you are preparing a 3,000-word paper, your introduction paragraph should consist of approximately 300 words. You should also write sentences within these 300 words that will attract the reader's attention and provide them with information about the paper.

Importance of an Introduction Paragraph

The biggest function of an introduction paragraph is to prepare the reader for the author's thesis statement. A traditional introduction paragraph begins with a few sentences or questions that will catch the reader's attention. After attracting the reader's attention, necessary background information on the subject is given. Finally, the author explains to the readers what the whole paper is about by stating the thesis. A thesis statement is the final sentence that summarizes the main points of your paper and conveys your claim.

First Things First: Preliminary Research

When working on any academic writing type, it is essential to start by researching your topic thoroughly before beginning to type. What sets academic writing apart from other writing types is the requirement for it to be written using accurate information from reliable sources.

Researching academic sources can be a time-consuming and unnecessary process. One has to read through hundreds of pages, review dozens of articles and verify the accuracy of each source. However, if you're looking to reduce your workload and maximize efficiency by automating repetitive tasks such as literature review, ZenoChat is the perfect solution for you. With its web search feature, ZenoChat can use the entire internet as a data source. Additionally, by activating the "scholar" option of the ZenoChat web search feature, you can ensure that it only uses academic sources when generating output.

How to Create an Introduction for Academic Writing?

Creating an introduction paragraph that is interesting, informative, and conveys your thesis is an easier process than it seems. As long as you have sufficient information about your topic and an outline , you can write engaging introductions by following a few simple steps. Let's take a closer look at how to write an introduction for academic writing.

1-) Start with a Catchy Hook

Your first sentence is one of the factors that most influence a reader's decision to read your paper. This sentence determines the tone of your paper and attracts the reader's attention. For this reason, we recommend that you start your introduction paragraph with a strong and catchy hook sentence.

  • Avoid long and complex sentences
  • Use clear and concise sentences
  • Write a sentence that will spark the reader's curiosity
  • You can ask questions that will encourage the reader to read the remaining paragraph
  • Avoid fact or overly broad sentences
  • Avoid using dictionary definitions as your hook

2-) Give Background Information

After writing a strong hook sentence, you need to provide basic information about your topic so that the reader can understand what they will learn about when they read your paper. In this section, you can benefit from opinions that support or oppose your argument. Additionally, this section should refer to the body paragraphs of your writing.

  • You can write a background information sentence for each body paragraph.
  • The information here should be concise and compact
  • Avoid talking about your evidence and results unless necessary.

3-) State Your Thesis 

After attracting the reader's attention and providing background information, it is time to present your approach and argument towards the topic with a thesis statement. A thesis statement usually comprises one or two sentences and communicates the paper's argument to the reader. A well-written thesis statement should express your stance on the topic.

  • Avoid merely stating a fact
  • Claim your argument

4-) Tell Reader About Your Paper

Although you need to move on to body paragraphs after the thesis statement in short papers, it will be useful to add a few sentences that will guide the reader in your longer papers. This way, your readers can better understand which arguments they will encounter on which pages and the course of your paper. That leads the reader to clearly understand and follow your content.

Let’s Wrap it Up

Writing an interesting and informative introduction is usually a long process that requires a lot of rewriting. You may need to rewrite a sentence dozens of times so that your words and sentences clearly describe your paper and argument. Fortunately, you can generate state-of-the-art introductions using AI tools and use them with a little editing.

When it comes to text generation, paraphrasing, and grammar & spelling checking, TextCortex is the way to go with its advanced LLMs and customization options. With TextCortex, you can generate all writing types, including introduction, from scratch, rewrite your existing texts, change their tone of voice, or fix their grammar. TextCortex is available as a web application and browser extension. The TextCortex browser extension is integrated with 30,000+ websites and apps. So, you can complete your AI-driven writing tasks anywhere and anytime.

Let's examine a few sample introductions generated by TextCortex.

Example Introduction #1

“Should social media platforms be banned from collecting their users' data?”

example research paper introduction

Example Introduction #2

“Do electric vehicles decrease overall emissions?”

example research paper introduction 2

Example Introduction #3

“Is graffiti an act of vandalism or the creation of art?”

A screenshot of a computerDescription automatically generated

Interested in adopting AI across your organization?

Teams using TextCortex save 3 work days a month per employee and achieve up to 28x ROI.

Did you like this article? Explore a few more related posts.

good introductions for a research paper

How to Create a Strong Thesis?

good introductions for a research paper

Top 3 AI Tools That Write Essays (Free & Paid)

good introductions for a research paper

5 Main Essay Types & Guide with Examples

Questions  answers..

TextCortex is a powerful AI-powered writing tool that can help you reduce your writing time, handle big tasks, and create high-quality content without errors. With its customizable platform, personalized intelligence experience, advanced writing and research capabilities, and error-free content, TextCortex is the perfect tool for creative professionals who want to be a creative force in their industry.

Our AI copilot learned how to write from more than 3 billion sentences and has the ability to create unique content. However, fact-checking is something which still requires a human approval.

TextCortex supports more than 25 languages including English, Dutch, German, Ukranian, Romanian, Spanish, Portuguese, French, Italian.

Yes, TextCortex is completely free to use with all of its features. When you sign up, you receive 100 free creations. Then you will receive 20 recurring creations every day on the free plan.

Yes, we have a Text Generation API, please talk to us directly to implement it. You can reach out to us at [email protected]

Account sharing is not allowed. If you have a need for more than 5 seats for an account, you can directly contact us at [email protected]

Yes, TextCortex offers 14-day free trial for users to try out all features extensively with higher number of generations. But keep in mind that you can already try everything with the free plan. There is no feature that is locked behind a premium plan.

Overall, TextCortex AI has over 1000 five-star reviews on reputable review sites such as G2, Trustpilot and Capterra.

TextCortex learns and adapts to your unique writing style and knowledge, making it easier for you to write high-quality & personalized content.

Your premium features will be available until the end of your subscription date, then your account plan will be set to Free plan.

General Questions

Your ai copilot is ready to collaborate with you..

Connect your knowledge, customize the style and start collaborating with your AI copilot.

good introductions for a research paper

  • If you are writing in a new discipline, you should always make sure to ask about conventions and expectations for introductions, just as you would for any other aspect of the essay. For example, while it may be acceptable to write a two-paragraph (or longer) introduction for your papers in some courses, instructors in other disciplines, such as those in some Government courses, may expect a shorter introduction that includes a preview of the argument that will follow.  
  • In some disciplines (Government, Economics, and others), it’s common to offer an overview in the introduction of what points you will make in your essay. In other disciplines, you will not be expected to provide this overview in your introduction.  
  • Avoid writing a very general opening sentence. While it may be true that “Since the dawn of time, people have been telling love stories,” it won’t help you explain what’s interesting about your topic.  
  • Avoid writing a “funnel” introduction in which you begin with a very broad statement about a topic and move to a narrow statement about that topic. Broad generalizations about a topic will not add to your readers’ understanding of your specific essay topic.  
  • Avoid beginning with a dictionary definition of a term or concept you will be writing about. If the concept is complicated or unfamiliar to your readers, you will need to define it in detail later in your essay. If it’s not complicated, you can assume your readers already know the definition.  
  • Avoid offering too much detail in your introduction that a reader could better understand later in the paper.
  • picture_as_pdf Introductions
  • Privacy Policy

Research Method

Home » Research Paper Introduction – Writing Guide and Examples

Research Paper Introduction – Writing Guide and Examples

Table of Contents

Research Paper Introduction

Research Paper Introduction

Research paper introduction is the first section of a research paper that provides an overview of the study, its purpose, and the research question (s) or hypothesis (es) being investigated. It typically includes background information about the topic, a review of previous research in the field, and a statement of the research objectives. The introduction is intended to provide the reader with a clear understanding of the research problem, why it is important, and how the study will contribute to existing knowledge in the field. It also sets the tone for the rest of the paper and helps to establish the author’s credibility and expertise on the subject.

How to Write Research Paper Introduction

Writing an introduction for a research paper can be challenging because it sets the tone for the entire paper. Here are some steps to follow to help you write an effective research paper introduction:

  • Start with a hook : Begin your introduction with an attention-grabbing statement, a question, or a surprising fact that will make the reader interested in reading further.
  • Provide background information: After the hook, provide background information on the topic. This information should give the reader a general idea of what the topic is about and why it is important.
  • State the research problem: Clearly state the research problem or question that the paper addresses. This should be done in a concise and straightforward manner.
  • State the research objectives: After stating the research problem, clearly state the research objectives. This will give the reader an idea of what the paper aims to achieve.
  • Provide a brief overview of the paper: At the end of the introduction, provide a brief overview of the paper. This should include a summary of the main points that will be discussed in the paper.
  • Revise and refine: Finally, revise and refine your introduction to ensure that it is clear, concise, and engaging.

Structure of Research Paper Introduction

The following is a typical structure for a research paper introduction:

  • Background Information: This section provides an overview of the topic of the research paper, including relevant background information and any previous research that has been done on the topic. It helps to give the reader a sense of the context for the study.
  • Problem Statement: This section identifies the specific problem or issue that the research paper is addressing. It should be clear and concise, and it should articulate the gap in knowledge that the study aims to fill.
  • Research Question/Hypothesis : This section states the research question or hypothesis that the study aims to answer. It should be specific and focused, and it should clearly connect to the problem statement.
  • Significance of the Study: This section explains why the research is important and what the potential implications of the study are. It should highlight the contribution that the research makes to the field.
  • Methodology: This section describes the research methods that were used to conduct the study. It should be detailed enough to allow the reader to understand how the study was conducted and to evaluate the validity of the results.
  • Organization of the Paper : This section provides a brief overview of the structure of the research paper. It should give the reader a sense of what to expect in each section of the paper.

Research Paper Introduction Examples

Research Paper Introduction Examples could be:

Example 1: In recent years, the use of artificial intelligence (AI) has become increasingly prevalent in various industries, including healthcare. AI algorithms are being developed to assist with medical diagnoses, treatment recommendations, and patient monitoring. However, as the use of AI in healthcare grows, ethical concerns regarding privacy, bias, and accountability have emerged. This paper aims to explore the ethical implications of AI in healthcare and propose recommendations for addressing these concerns.

Example 2: Climate change is one of the most pressing issues facing our planet today. The increasing concentration of greenhouse gases in the atmosphere has resulted in rising temperatures, changing weather patterns, and other environmental impacts. In this paper, we will review the scientific evidence on climate change, discuss the potential consequences of inaction, and propose solutions for mitigating its effects.

Example 3: The rise of social media has transformed the way we communicate and interact with each other. While social media platforms offer many benefits, including increased connectivity and access to information, they also present numerous challenges. In this paper, we will examine the impact of social media on mental health, privacy, and democracy, and propose solutions for addressing these issues.

Example 4: The use of renewable energy sources has become increasingly important in the face of climate change and environmental degradation. While renewable energy technologies offer many benefits, including reduced greenhouse gas emissions and energy independence, they also present numerous challenges. In this paper, we will assess the current state of renewable energy technology, discuss the economic and political barriers to its adoption, and propose solutions for promoting the widespread use of renewable energy.

Purpose of Research Paper Introduction

The introduction section of a research paper serves several important purposes, including:

  • Providing context: The introduction should give readers a general understanding of the topic, including its background, significance, and relevance to the field.
  • Presenting the research question or problem: The introduction should clearly state the research question or problem that the paper aims to address. This helps readers understand the purpose of the study and what the author hopes to accomplish.
  • Reviewing the literature: The introduction should summarize the current state of knowledge on the topic, highlighting the gaps and limitations in existing research. This shows readers why the study is important and necessary.
  • Outlining the scope and objectives of the study: The introduction should describe the scope and objectives of the study, including what aspects of the topic will be covered, what data will be collected, and what methods will be used.
  • Previewing the main findings and conclusions : The introduction should provide a brief overview of the main findings and conclusions that the study will present. This helps readers anticipate what they can expect to learn from the paper.

When to Write Research Paper Introduction

The introduction of a research paper is typically written after the research has been conducted and the data has been analyzed. This is because the introduction should provide an overview of the research problem, the purpose of the study, and the research questions or hypotheses that will be investigated.

Once you have a clear understanding of the research problem and the questions that you want to explore, you can begin to write the introduction. It’s important to keep in mind that the introduction should be written in a way that engages the reader and provides a clear rationale for the study. It should also provide context for the research by reviewing relevant literature and explaining how the study fits into the larger field of research.

Advantages of Research Paper Introduction

The introduction of a research paper has several advantages, including:

  • Establishing the purpose of the research: The introduction provides an overview of the research problem, question, or hypothesis, and the objectives of the study. This helps to clarify the purpose of the research and provide a roadmap for the reader to follow.
  • Providing background information: The introduction also provides background information on the topic, including a review of relevant literature and research. This helps the reader understand the context of the study and how it fits into the broader field of research.
  • Demonstrating the significance of the research: The introduction also explains why the research is important and relevant. This helps the reader understand the value of the study and why it is worth reading.
  • Setting expectations: The introduction sets the tone for the rest of the paper and prepares the reader for what is to come. This helps the reader understand what to expect and how to approach the paper.
  • Grabbing the reader’s attention: A well-written introduction can grab the reader’s attention and make them interested in reading further. This is important because it can help to keep the reader engaged and motivated to read the rest of the paper.
  • Creating a strong first impression: The introduction is the first part of the research paper that the reader will see, and it can create a strong first impression. A well-written introduction can make the reader more likely to take the research seriously and view it as credible.
  • Establishing the author’s credibility: The introduction can also establish the author’s credibility as a researcher. By providing a clear and thorough overview of the research problem and relevant literature, the author can demonstrate their expertise and knowledge in the field.
  • Providing a structure for the paper: The introduction can also provide a structure for the rest of the paper. By outlining the main sections and sub-sections of the paper, the introduction can help the reader navigate the paper and find the information they are looking for.

About the author

' src=

Muhammad Hassan

Researcher, Academic Writer, Web developer

You may also like

Delimitations

Delimitations in Research – Types, Examples and...

Research Results

Research Results Section – Writing Guide and...

Limitations in Research

Limitations in Research – Types, Examples and...

Theoretical Framework

Theoretical Framework – Types, Examples and...

Research Paper Abstract

Research Paper Abstract – Writing Guide and...

Implications in Research

Implications in Research – Types, Examples and...

Instant insights, infinite possibilities

How to write an effective introduction for your research paper

Last updated

20 January 2024

Reviewed by

However, the introduction is a vital element of your research paper . It helps the reader decide whether your paper is worth their time. As such, it's worth taking your time to get it right.

In this article, we'll tell you everything you need to know about writing an effective introduction for your research paper.

  • The importance of an introduction in research papers

The primary purpose of an introduction is to provide an overview of your paper. This lets readers gauge whether they want to continue reading or not. The introduction should provide a meaningful roadmap of your research to help them make this decision. It should let readers know whether the information they're interested in is likely to be found in the pages that follow.

Aside from providing readers with information about the content of your paper, the introduction also sets the tone. It shows readers the style of language they can expect, which can further help them to decide how far to read.

When you take into account both of these roles that an introduction plays, it becomes clear that crafting an engaging introduction is the best way to get your paper read more widely. First impressions count, and the introduction provides that impression to readers.

  • The optimum length for a research paper introduction

While there's no magic formula to determine exactly how long a research paper introduction should be, there are a few guidelines. Some variables that impact the ideal introduction length include:

Field of study

Complexity of the topic

Specific requirements of the course or publication

A commonly recommended length of a research paper introduction is around 10% of the total paper’s length. So, a ten-page paper has a one-page introduction. If the topic is complex, it may require more background to craft a compelling intro. Humanities papers tend to have longer introductions than those of the hard sciences.

The best way to craft an introduction of the right length is to focus on clarity and conciseness. Tell the reader only what is necessary to set up your research. An introduction edited down with this goal in mind should end up at an acceptable length.

  • Evaluating successful research paper introductions

A good way to gauge how to create a great introduction is by looking at examples from across your field. The most influential and well-regarded papers should provide some insights into what makes a good introduction.

Dissecting examples: what works and why

We can make some general assumptions by looking at common elements of a good introduction, regardless of the field of research.

A common structure is to start with a broad context, and then narrow that down to specific research questions or hypotheses. This creates a funnel that establishes the scope and relevance.

The most effective introductions are careful about the assumptions they make regarding reader knowledge. By clearly defining key terms and concepts instead of assuming the reader is familiar with them, these introductions set a more solid foundation for understanding.

To pull in the reader and make that all-important good first impression, excellent research paper introductions will often incorporate a compelling narrative or some striking fact that grabs the reader's attention.

Finally, good introductions provide clear citations from past research to back up the claims they're making. In the case of argumentative papers or essays (those that take a stance on a topic or issue), a strong thesis statement compels the reader to continue reading.

Common pitfalls to avoid in research paper introductions

You can also learn what not to do by looking at other research papers. Many authors have made mistakes you can learn from.

We've talked about the need to be clear and concise. Many introductions fail at this; they're verbose, vague, or otherwise fail to convey the research problem or hypothesis efficiently. This often comes in the form of an overemphasis on background information, which obscures the main research focus.

Ensure your introduction provides the proper emphasis and excitement around your research and its significance. Otherwise, fewer people will want to read more about it.

  • Crafting a compelling introduction for a research paper

Let’s take a look at the steps required to craft an introduction that pulls readers in and compels them to learn more about your research.

Step 1: Capturing interest and setting the scene

To capture the reader's interest immediately, begin your introduction with a compelling question, a surprising fact, a provocative quote, or some other mechanism that will hook readers and pull them further into the paper.

As they continue reading, the introduction should contextualize your research within the current field, showing readers its relevance and importance. Clarify any essential terms that will help them better understand what you're saying. This keeps the fundamentals of your research accessible to all readers from all backgrounds.

Step 2: Building a solid foundation with background information

Including background information in your introduction serves two major purposes:

It helps to clarify the topic for the reader

It establishes the depth of your research

The approach you take when conveying this information depends on the type of paper.

For argumentative papers, you'll want to develop engaging background narratives. These should provide context for the argument you'll be presenting.

For empirical papers, highlighting past research is the key. Often, there will be some questions that weren't answered in those past papers. If your paper is focused on those areas, those papers make ideal candidates for you to discuss and critique in your introduction.

Step 3: Pinpointing the research challenge

To capture the attention of the reader, you need to explain what research challenges you'll be discussing.

For argumentative papers, this involves articulating why the argument you'll be making is important. What is its relevance to current discussions or problems? What is the potential impact of people accepting or rejecting your argument?

For empirical papers, explain how your research is addressing a gap in existing knowledge. What new insights or contributions will your research bring to your field?

Step 4: Clarifying your research aims and objectives

We mentioned earlier that the introduction to a research paper can serve as a roadmap for what's within. We've also frequently discussed the need for clarity. This step addresses both of these.

When writing an argumentative paper, craft a thesis statement with impact. Clearly articulate what your position is and the main points you intend to present. This will map out for the reader exactly what they'll get from reading the rest.

For empirical papers, focus on formulating precise research questions and hypotheses. Directly link them to the gaps or issues you've identified in existing research to show the reader the precise direction your research paper will take.

Step 5: Sketching the blueprint of your study

Continue building a roadmap for your readers by designing a structured outline for the paper. Guide the reader through your research journey, explaining what the different sections will contain and their relationship to one another.

This outline should flow seamlessly as you move from section to section. Creating this outline early can also help guide the creation of the paper itself, resulting in a final product that's better organized. In doing so, you'll craft a paper where each section flows intuitively from the next.

Step 6: Integrating your research question

To avoid letting your research question get lost in background information or clarifications, craft your introduction in such a way that the research question resonates throughout. The research question should clearly address a gap in existing knowledge or offer a new perspective on an existing problem.

Tell users your research question explicitly but also remember to frequently come back to it. When providing context or clarification, point out how it relates to the research question. This keeps your focus where it needs to be and prevents the topic of the paper from becoming under-emphasized.

Step 7: Establishing the scope and limitations

So far, we've talked mostly about what's in the paper and how to convey that information to readers. The opposite is also important. Information that's outside the scope of your paper should be made clear to the reader in the introduction so their expectations for what is to follow are set appropriately.

Similarly, be honest and upfront about the limitations of the study. Any constraints in methodology, data, or how far your findings can be generalized should be fully communicated in the introduction.

Step 8: Concluding the introduction with a promise

The final few lines of the introduction are your last chance to convince people to continue reading the rest of the paper. Here is where you should make it very clear what benefit they'll get from doing so. What topics will be covered? What questions will be answered? Make it clear what they will get for continuing.

By providing a quick recap of the key points contained in the introduction in its final lines and properly setting the stage for what follows in the rest of the paper, you refocus the reader's attention on the topic of your research and guide them to read more.

  • Research paper introduction best practices

Following the steps above will give you a compelling introduction that hits on all the key points an introduction should have. Some more tips and tricks can make an introduction even more polished.

As you follow the steps above, keep the following tips in mind.

Set the right tone and style

Like every piece of writing, a research paper should be written for the audience. That is to say, it should match the tone and style that your academic discipline and target audience expect. This is typically a formal and academic tone, though the degree of formality varies by field.

Kno w the audience

The perfect introduction balances clarity with conciseness. The amount of clarification required for a given topic depends greatly on the target audience. Knowing who will be reading your paper will guide you in determining how much background information is required.

Adopt the CARS (create a research space) model

The CARS model is a helpful tool for structuring introductions. This structure has three parts. The beginning of the introduction establishes the general research area. Next, relevant literature is reviewed and critiqued. The final section outlines the purpose of your study as it relates to the previous parts.

Master the art of funneling

The CARS method is one example of a well-funneled introduction. These start broadly and then slowly narrow down to your specific research problem. It provides a nice narrative flow that provides the right information at the right time. If you stray from the CARS model, try to retain this same type of funneling.

Incorporate narrative element

People read research papers largely to be informed. But to inform the reader, you have to hold their attention. A narrative style, particularly in the introduction, is a great way to do that. This can be a compelling story, an intriguing question, or a description of a real-world problem.

Write the introduction last

By writing the introduction after the rest of the paper, you'll have a better idea of what your research entails and how the paper is structured. This prevents the common problem of writing something in the introduction and then forgetting to include it in the paper. It also means anything particularly exciting in the paper isn’t neglected in the intro.

Should you be using a customer insights hub?

Do you want to discover previous research faster?

Do you share your research findings with others?

Do you analyze research data?

Start for free today, add your research, and get to key insights faster

Editor’s picks

Last updated: 18 April 2023

Last updated: 27 February 2023

Last updated: 22 August 2024

Last updated: 5 February 2023

Last updated: 16 August 2024

Last updated: 9 March 2023

Last updated: 30 April 2024

Last updated: 12 December 2023

Last updated: 11 March 2024

Last updated: 4 July 2024

Last updated: 6 March 2024

Last updated: 5 March 2024

Last updated: 13 May 2024

Latest articles

Related topics, .css-je19u9{-webkit-align-items:flex-end;-webkit-box-align:flex-end;-ms-flex-align:flex-end;align-items:flex-end;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;-webkit-box-flex-wrap:wrap;-webkit-flex-wrap:wrap;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-pack:center;-ms-flex-pack:center;-webkit-justify-content:center;justify-content:center;row-gap:0;text-align:center;max-width:671px;}@media (max-width: 1079px){.css-je19u9{max-width:400px;}.css-je19u9>span{white-space:pre;}}@media (max-width: 799px){.css-je19u9{max-width:400px;}.css-je19u9>span{white-space:pre;}} decide what to .css-1kiodld{max-height:56px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;}@media (max-width: 1079px){.css-1kiodld{display:none;}} build next, decide what to build next, log in or sign up.

Get started for free

How to Write an Introduction for a Research Paper

Academic Writing Service

How to write an introduction for a research paper? Eventually (and with practice) all writers will develop their own strategy for writing the perfect introduction for a research paper. Once you are comfortable with writing, you will probably find your own, but coming up with a good strategy can be tough for beginning writers.

The Purpose of an Introduction

Your opening paragraphs, phrases for introducing thesis statements, research paper introduction examples, using the introduction to map out your research paper.

How to Write an Introduction for a Research Paper

Academic Writing, Editing, Proofreading, And Problem Solving Services

Get 10% off with 24start discount code.

  • First write your thesis.Your thesis should state the main idea in specific terms.
  • After you have a working thesis, tackle the body of your paper before you write the rest of the introduction. Each paragraph in the body should explore one specific topic that proves, or summarizes your thesis. Writing is a thinking process. Once you have worked your way through that process by writing the body of the paper, you will have an intimate understanding of how you are supporting your thesis. After you have written the body paragraphs, go back and rewrite your thesis to make it more specific and to connect it to the topics you addressed in the body paragraph.
  • Revise your introduction several times, saving each revision. Be sure your introduction previews the topics you are presenting in your paper. One way of doing this is to use keywords from the topic sentences in each paragraph to introduce, or preview, the topics in your introduction.This “preview” will give your reader a context for understanding how you will make your case.
  • Experiment by taking different approaches to your thesis with every revision you make. Play with the language in the introduction. Strike a new tone. Go back and compare versions. Then pick the one that works most effectively with the body of your research paper.
  • Do not try to pack everything you want to say into your introduction. Just as your introduction should not be too short, it should also not be too long. Your introduction should be about the same length as any other paragraph in your research paper. Let the content—what you have to say—dictate the length.

The first page of your research paper should draw the reader into the text. It is the paper’s most important page and, alas, often the worst written. There are two culprits here and effective ways to cope with both of them.

First, the writer is usually straining too hard to say something terribly BIG and IMPORTANT about the thesis topic. The goal is worthy, but the aim is unrealistically high. The result is often a muddle of vague platitudes rather than a crisp, compelling introduction to the thesis. Want a familiar example? Listen to most graduation speakers. Their goal couldn’t be loftier: to say what education means and to tell an entire football stadium how to live the rest of their lives. The results are usually an avalanche of clichés and sodden prose.

The second culprit is bad timing. The opening and concluding paragraphs are usually written late in the game, after the rest of the thesis is finished and polished. There’s nothing wrong with writing these sections last. It’s usually the right approach since you need to know exactly what you are saying in the substantive middle sections of the thesis before you can introduce them effectively or draw together your findings. But having waited to write the opening and closing sections, you need to review and edit them several times to catch up. Otherwise, you’ll putting the most jagged prose in the most tender spots. Edit and polish your opening paragraphs with extra care. They should draw readers into the paper.

After you’ve done some extra polishing, I suggest a simple test for the introductory section. As an experiment, chop off the first few paragraphs. Let the paper begin on, say, paragraph 2 or even page 2. If you don’t lose much, or actually gain in clarity and pace, then you’ve got a problem.

There are two solutions. One is to start at this new spot, further into the text. After all, that’s where you finally gain traction on your subject. That works best in some cases, and we occasionally suggest it. The alternative, of course, is to write a new opening that doesn’t flop around, saying nothing.

What makes a good opening? Actually, they come in several flavors. One is an intriguing story about your topic. Another is a brief, compelling quote. When you run across them during your reading, set them aside for later use. Don’t be deterred from using them because they “don’t seem academic enough.” They’re fine as long as the rest of the paper doesn’t sound like you did your research in People magazine. The third, and most common, way to begin is by stating your main questions, followed by a brief comment about why they matter.

Whichever opening you choose, it should engage your readers and coax them to continue. Having done that, you should give them a general overview of the project—the main issues you will cover, the material you will use, and your thesis statement (that is, your basic approach to the topic). Finally, at the end of the introductory section, give your readers a brief road map, showing how the paper will unfold. How you do that depends on your topic but here are some general suggestions for phrase choice that may help:

  • This analysis will provide …
  • This paper analyzes the relationship between …
  • This paper presents an analysis of …
  • This paper will argue that …
  • This topic supports the argument that…
  • Research supports the opinion that …
  • This paper supports the opinion that …
  • An interpretation of the facts indicates …
  • The results of this experiment show …
  • The results of this research show …

Comparisons/Contrasts

  • A comparison will show that …
  • By contrasting the results,we see that …
  • This paper examines the advantages and disadvantages of …

Definitions/Classifications

  • This paper will provide a guide for categorizing the following:…
  • This paper provides a definition of …
  • This paper explores the meaning of …
  • This paper will discuss the implications of …
  • A discussion of this topic reveals …
  • The following discussion will focus on …

Description

  • This report describes…
  • This report will illustrate…
  • This paper provides an illustration of …

Process/Experimentation

  • This paper will identify the reasons behind…
  • The results of the experiment show …
  • The process revealed that …
  • This paper theorizes…
  • This paper presents the theory that …
  • In theory, this indicates that …

Quotes, anecdotes, questions, examples, and broad statements—all of them can used successfully to write an introduction for a research paper. It’s instructive to see them in action, in the hands of skilled academic writers.

Let’s begin with David M. Kennedy’s superb history, Freedom from Fear: The American People in Depression and War, 1929–1945 . Kennedy begins each chapter with a quote, followed by his text. The quote above chapter 1 shows President Hoover speaking in 1928 about America’s golden future. The text below it begins with the stock market collapse of 1929. It is a riveting account of just how wrong Hoover was. The text about the Depression is stronger because it contrasts so starkly with the optimistic quotation.

“We in America today are nearer the final triumph over poverty than ever before in the history of any land.”—Herbert Hoover, August 11, 1928 Like an earthquake, the stock market crash of October 1929 cracked startlingly across the United States, the herald of a crisis that was to shake the American way of life to its foundations. The events of the ensuing decade opened a fissure across the landscape of American history no less gaping than that opened by the volley on Lexington Common in April 1775 or by the bombardment of Sumter on another April four score and six years later. The ratcheting ticker machines in the autumn of 1929 did not merely record avalanching stock prices. In time they came also to symbolize the end of an era. (David M. Kennedy, Freedom from Fear: The American People in Depression and War, 1929–1945 . New York: Oxford University Press, 1999, p. 10)

Kennedy has exciting, wrenching material to work with. John Mueller faces the exact opposite problem. In Retreat from Doomsday: The Obsolescence of Major War , he is trying to explain why Great Powers have suddenly stopped fighting each other. For centuries they made war on each other with devastating regularity, killing millions in the process. But now, Mueller thinks, they have not just paused; they have stopped permanently. He is literally trying to explain why “nothing is happening now.” That may be an exciting topic intellectually, it may have great practical significance, but “nothing happened” is not a very promising subject for an exciting opening paragraph. Mueller manages to make it exciting and, at the same time, shows why it matters so much. Here’s his opening, aptly entitled “History’s Greatest Nonevent”:

On May 15, 1984, the major countries of the developed world had managed to remain at peace with each other for the longest continuous stretch of time since the days of the Roman Empire. If a significant battle in a war had been fought on that day, the press would have bristled with it. As usual, however, a landmark crossing in the history of peace caused no stir: the most prominent story in the New York Times that day concerned the saga of a manicurist, a machinist, and a cleaning woman who had just won a big Lotto contest. This book seeks to develop an explanation for what is probably the greatest nonevent in human history. (John Mueller, Retreat from Doomsday: The Obsolescence of Major War . New York: Basic Books, 1989, p. 3)

In the space of a few sentences, Mueller sets up his puzzle and reveals its profound human significance. At the same time, he shows just how easy it is to miss this milestone in the buzz of daily events. Notice how concretely he does that. He doesn’t just say that the New York Times ignored this record setting peace. He offers telling details about what they covered instead: “a manicurist, a machinist, and a cleaning woman who had just won a big Lotto contest.” Likewise, David Kennedy immediately entangles us in concrete events: the stunning stock market crash of 1929. These are powerful openings that capture readers’ interests, establish puzzles, and launch narratives.

Sociologist James Coleman begins in a completely different way, by posing the basic questions he will study. His ambitious book, Foundations of Social Theory , develops a comprehensive theory of social life, so it is entirely appropriate for him to begin with some major questions. But he could just as easily have begun with a compelling story or anecdote. He includes many of them elsewhere in his book. His choice for the opening, though, is to state his major themes plainly and frame them as a paradox. Sociologists, he says, are interested in aggregate behavior—how people act in groups, organizations, or large numbers—yet they mostly examine individuals:

A central problem in social science is that of accounting for the function of some kind of social system. Yet in most social research, observations are not made on the system as a whole, but on some part of it. In fact, the natural unit of observation is the individual person…  This has led to a widening gap between theory and research… (James S. Coleman, Foundations of Social Theory . Cambridge, MA: Harvard University Press, 1990, pp. 1–2)

After expanding on this point, Coleman explains that he will not try to remedy the problem by looking solely at groups or aggregate-level data. That’s a false solution, he says, because aggregates don’t act; individuals do. So the real problem is to show the links between individual actions and aggregate outcomes, between the micro and the macro.

The major problem for explanations of system behavior based on actions and orientations at a level below that of the system [in this case, on individual-level actions] is that of moving from the lower level to the system level. This has been called the micro-to-macro problem, and it is pervasive throughout the social sciences. (Coleman, Foundations of Social Theory , p. 6)

Explaining how to deal with this “micro-to-macro problem” is the central issue of Coleman’s book, and he announces it at the beginning.

Coleman’s theory-driven opening stands at the opposite end of the spectrum from engaging stories or anecdotes, which are designed to lure the reader into the narrative and ease the path to a more analytic treatment later in the text. Take, for example, the opening sentences of Robert L. Herbert’s sweeping study Impressionism: Art, Leisure, and Parisian Society : “When Henry Tuckerman came to Paris in 1867, one of the thousands of Americans attracted there by the huge international exposition, he was bowled over by the extraordinary changes since his previous visit twenty years before.” (Robert L. Herbert, Impressionism: Art, Leisure, and Parisian Society . New Haven, CT: Yale University Press, 1988, p. 1.) Herbert fills in the evocative details to set the stage for his analysis of the emerging Impressionist art movement and its connection to Parisian society and leisure in this period.

David Bromwich writes about Wordsworth, a poet so familiar to students of English literature that it is hard to see him afresh, before his great achievements, when he was just a young outsider starting to write. To draw us into Wordsworth’s early work, Bromwich wants us to set aside our entrenched images of the famous mature poet and see him as he was in the 1790s, as a beginning writer on the margins of society. He accomplishes this ambitious task in the opening sentences of Disowned by Memory: Wordsworth’s Poetry of the 1790s :

Wordsworth turned to poetry after the revolution to remind himself that he was still a human being. It was a curious solution, to a difficulty many would not have felt. The whole interest of his predicament is that he did feel it. Yet Wordsworth is now so established an eminence—his name so firmly fixed with readers as a moralist of self-trust emanating from complete self-security—that it may seem perverse to imagine him as a criminal seeking expiation. Still, that is a picture we get from The Borderers and, at a longer distance, from “Tintern Abbey.” (David Bromwich, Disowned by Memory: Wordsworth’s Poetry of the 1790s . Chicago: University of Chicago Press, 1998, p. 1)

That’s a wonderful opening! Look at how much Bromwich accomplishes in just a few words. He not only prepares the way for analyzing Wordsworth’s early poetry; he juxtaposes the anguished young man who wrote it to the self-confident, distinguished figure he became—the eminent man we can’t help remembering as we read his early poetry.

Let us highlight a couple of other points in this passage because they illustrate some intelligent writing choices. First, look at the odd comma in this sentence: “It was a curious solution, to a difficulty many would not have felt.” Any standard grammar book would say that comma is wrong and should be omitted. Why did Bromwich insert it? Because he’s a fine writer, thinking of his sentence rhythm and the point he wants to make. The comma does exactly what it should. It makes us pause, breaking the sentence into two parts, each with an interesting point. One is that Wordsworth felt a difficulty others would not have; the other is that he solved it in a distinctive way. It would be easy for readers to glide over this double message, so Bromwich has inserted a speed bump to slow us down. Most of the time, you should follow grammatical rules, like those about commas, but you should bend them when it serves a good purpose. That’s what the writer does here.

The second small point is the phrase “after the revolution” in the first sentence: “Wordsworth turned to poetry after the revolution to remind himself that he was still a human being.” Why doesn’t Bromwich say “after the French Revolution”? Because he has judged his book’s audience. He is writing for specialists who already know which revolution is reverberating through English life in the 1790s. It is the French Revolution, not the earlier loss of the American colonies. If Bromwich were writing for a much broader audience—say, the New York Times Book Review—he would probably insert the extra word to avoid confusion.

The message “Know your audience” applies to all writers. Don’t talk down to them by assuming they can’t get dressed in the morning. Don’t strut around showing off your book learnin’ by tossing in arcane facts and esoteric language for its own sake. Neither will win over readers.

Bromwich, Herbert, and Coleman open their works in different ways, but their choices work well for their different texts. Your task is to decide what kind of opening will work best for yours. Don’t let that happen by default, by grabbing the first idea you happen upon. Consider a couple of different ways of opening your thesis and then choose the one you prefer. Give yourself some options, think them over, then make an informed choice.

Whether you begin with a story, puzzle, or broad statement, the next part of the introduction should pose your main questions and establish your argument. This is your thesis statement—your viewpoint along with the supporting reasons and evidence. It should be articulated plainly so readers understand full well what your paper is about and what it will argue.

After that, give your readers a road map of what’s to come. That’s normally done at the end of the introductory section (or, in a book, at the end of the introductory chapter). Here’s John J. Mearsheimer presenting such a road map in The Tragedy of Great Power Politics . He not only tells us the order of upcoming chapters, he explains why he’s chosen that order and which chapters are most important:

The Plan of the Book The rest of the chapters in this book are concerned mainly with answering the six big questions about power which I identified earlier. Chapter 2, which is probably the most important chapter in the book, lays out my theory of why states compete for power and why they pursue hegemony. In Chapters 3 and 4, I define power and explain how to measure it. I do this in order to lay the groundwork for testing my theory… (John J. Mearsheimer, The Tragedy of Great Power Politics . New York: W. W. Norton, 2001, p. 27)

As this excerpt makes clear, Mearsheimer has already laid out his “six big questions” in the introduction. Now he’s showing us the path ahead, the path to answering those questions.

At the end of the introduction, give your readers a road map of what’s to come. Tell them what the upcoming sections will be and why they are arranged in this particular order.

After having written your introduction it’s time to move to the biggest part: body of a research paper.

Back to How To Write A Research Paper .

ORDER HIGH QUALITY CUSTOM PAPER

good introductions for a research paper

  • Resources Home 🏠
  • Try SciSpace Copilot
  • Search research papers
  • Add Copilot Extension
  • Try AI Detector
  • Try Paraphraser
  • Try Citation Generator
  • April Papers
  • June Papers
  • July Papers

SciSpace Resources

How to Write an Introduction for a Research Paper

Sumalatha G

Table of Contents

Writing an introduction for a research paper is a critical element of your paper, but it can seem challenging to encapsulate enormous amount of information into a concise form. The introduction of your research paper sets the tone for your research and provides the context for your study. In this article, we will guide you through the process of writing an effective introduction that grabs the reader's attention and captures the essence of your research paper.

Understanding the Purpose of a Research Paper Introduction

The introduction acts as a road map for your research paper, guiding the reader through the main ideas and arguments. The purpose of the introduction is to present your research topic to the readers and provide a rationale for why your study is relevant. It helps the reader locate your research and its relevance in the broader field of related scientific explorations. Additionally, the introduction should inform the reader about the objectives and scope of your study, giving them an overview of what to expect in the paper. By including a comprehensive introduction, you establish your credibility as an author and convince the reader that your research is worth their time and attention.

Key Elements to Include in Your Introduction

When writing your research paper introduction, there are several key elements you should include to ensure it is comprehensive and informative.

  • A hook or attention-grabbing statement to capture the reader's interest.  It can be a thought-provoking question, a surprising statistic, or a compelling anecdote that relates to your research topic.
  • A brief overview of the research topic and its significance. By highlighting the gap in existing knowledge or the problem your research aims to address, you create a compelling case for the relevance of your study.
  • A clear research question or problem statement. This serves as the foundation of your research and guides the reader in understanding the unique focus of your study. It should be concise, specific, and clearly articulated.
  • An outline of the paper's structure and main arguments, to help the readers navigate through the paper with ease.

Preparing to Write Your Introduction

Before diving into writing your introduction, it is essential to prepare adequately. This involves 3 important steps:

  • Conducting Preliminary Research: Immerse yourself in the existing literature to develop a clear research question and position your study within the academic discourse.
  • Identifying Your Thesis Statement: Define a specific, focused, and debatable thesis statement, serving as a roadmap for your paper.
  • Considering Broader Context: Reflect on the significance of your research within your field, understanding its potential impact and contribution.

By engaging in these preparatory steps, you can ensure that your introduction is well-informed, focused, and sets the stage for a compelling research paper.

Structuring Your Introduction

Now that you have prepared yourself to tackle the introduction, it's time to structure it effectively. A well-structured introduction will engage the reader from the beginning and provide a logical flow to your research paper.

Starting with a Hook

Begin your introduction with an attention-grabbing hook that captivates the reader's interest. This hook serves as a way to make your introduction more engaging and compelling. For example, if you are writing a research paper on the impact of climate change on biodiversity, you could start your introduction with a statistic about the number of species that have gone extinct due to climate change. This will immediately grab the reader's attention and make them realize the urgency and importance of the topic.

Introducing Your Topic

Provide a brief overview, which should give the reader a general understanding of the subject matter and its significance. Explain the importance of the topic and its relevance to the field. This will help the reader understand why your research is significant and why they should continue reading. Continuing with the example of climate change and biodiversity, you could explain how climate change is one of the greatest threats to global biodiversity, how it affects ecosystems, and the potential consequences for both wildlife and human populations. By providing this context, you are setting the stage for the rest of your research paper and helping the reader understand the importance of your study.

Presenting Your Thesis Statement

The thesis statement should directly address your research question and provide a preview of the main arguments or findings discussed in your paper. Make sure your thesis statement is clear, concise, and well-supported by the evidence you will present in your research paper. By presenting a strong and focused thesis statement, you are providing the reader with the information they could anticipate in your research paper. This will help them understand the purpose and scope of your study and will make them more inclined to continue reading.

Writing Techniques for an Effective Introduction

When crafting an introduction, it is crucial to pay attention to the finer details that can elevate your writing to the next level. By utilizing specific writing techniques, you can captivate your readers and draw them into your research journey.

Using Clear and Concise Language

One of the most important writing techniques to employ in your introduction is the use of clear and concise language. By choosing your words carefully, you can effectively convey your ideas to the reader. It is essential to avoid using jargon or complex terminology that may confuse or alienate your audience. Instead, focus on communicating your research in a straightforward manner to ensure that your introduction is accessible to both experts in your field and those who may be new to the topic. This approach allows you to engage a broader audience and make your research more inclusive.

Establishing the Relevance of Your Research

One way to establish the relevance of your research is by highlighting how it fills a gap in the existing literature. Explain how your study addresses a significant research question that has not been adequately explored. By doing this, you demonstrate that your research is not only unique but also contributes to the broader knowledge in your field. Furthermore, it is important to emphasize the potential impact of your research. Whether it is advancing scientific understanding, informing policy decisions, or improving practical applications, make it clear to the reader how your study can make a difference.

By employing these two writing techniques in your introduction, you can effectively engage your readers. Take your time to craft an introduction that is both informative and captivating, leaving your readers eager to delve deeper into your research.

Revising and Polishing Your Introduction

Once you have written your introduction, it is crucial to revise and polish it to ensure that it effectively sets the stage for your research paper.

Self-Editing Techniques

Review your introduction for clarity, coherence, and logical flow. Ensure each paragraph introduces a new idea or argument with smooth transitions.

Check for grammatical errors, spelling mistakes, and awkward sentence structures.

Ensure that your introduction aligns with the overall tone and style of your research paper.

Seeking Feedback for Improvement

Consider seeking feedback from peers, colleagues, or your instructor. They can provide valuable insights and suggestions for improving your introduction. Be open to constructive criticism and use it to refine your introduction and make it more compelling for the reader.

Writing an introduction for a research paper requires careful thought and planning. By understanding the purpose of the introduction, preparing adequately, structuring effectively, and employing writing techniques, you can create an engaging and informative introduction for your research. Remember to revise and polish your introduction to ensure that it accurately represents the main ideas and arguments in your research paper. With a well-crafted introduction, you will capture the reader's attention and keep them inclined to your paper.

Suggested Reads

ResearchGPT: A Custom GPT for Researchers and Scientists Best Academic Search Engines [2023] How To Humanize AI Text In Scientific Articles Elevate Your Writing Game With AI Grammar Checker Tools

You might also like

This ChatGPT Alternative Will Change How You Read PDFs Forever!

This ChatGPT Alternative Will Change How You Read PDFs Forever!

Sumalatha G

Smallpdf vs SciSpace: Which ChatPDF is Right for You?

Adobe PDF Reader vs. SciSpace ChatPDF — Best Chat PDF Tools

Adobe PDF Reader vs. SciSpace ChatPDF — Best Chat PDF Tools

BibGuru Blog

Be more productive in school

  • Citation Styles

How to write an introduction for a research paper

How to write a introduction for a research paper

Writing an introduction for a research paper can be one of the hardest parts of the writing process. How do you get started? In this post, we discuss the components of an introduction and explore strategies for writing one successfully.

What is an introduction?

The introduction to a research paper provides background information or context on the topic. It also includes the thesis statement and signposts that let the reader know what you will cover in the rest of the paper.

Depending on the type of research paper that you’re writing, you may also include a brief state of the field in your introduction. You might also put that in a separate section, called a literature review. Before you tackle writing your introduction, be sure to consult the assignment guidelines for your paper.

How to write an introduction

An introduction provides an overview of your topic and any background information that your readers need to know in order to understand the context. It generally concludes with an explicit statement of your position on the topic, which is known as your thesis statement.

The opening section

Many papers begin with a hook: a short anecdote or scenario that draws the reader in and gives a hint of what the paper will cover. A hook allows you to capture your reader’s attention and provides an anchor for the context that you will provide in the bulk of the introduction.

Most of your introduction should be taken up with background information, but this doesn’t mean that you should fill your opening section with overly general statements. Instead, provide key pieces of information (like statistics) that a reader would need to know in order to understand your main argument.

The thesis statement

Towards the end of the introduction, you should state your thesis, preferably in the form of "I argue that..." or "This paper argues that..." or a similar phrase. Although it’s called a “thesis statement,” your thesis can be more than one sentence.

Finally, an introduction contains a brief outline or "signposts" of what the rest of the article will cover (also known as forecasting statements). You can use language like, “in what follows,” or “in the rest of the paper,” to signal that you are describing what you’ll do in the remainder of the paper.

Tips for writing an introduction

1. don’t rely on generalizations.

An introduction is not simply filler. It has a very specific function in a research paper: to provide context that leads up to a thesis statement.

You may be tempted to start your paper with generalizations like, “many people believe that...” or, “in our society...,” or a general dictionary definition, because you’re not sure what kind of context to provide. Instead, use specific facts like statistics or historical anecdotes to open your paper.

2. State your thesis directly

Once you’ve provided the appropriate, and specific, background information on your topic, you can move on to stating your thesis. As a rule of thumb, state your thesis as directly as possible. Use phrases like “I argue that..” to indicate that you are laying out your main argument.

3. Include signposts

A strong introduction includes clear signposts that outline what you will cover in the rest of the paper. You can signal this by using words like, “in what follows,” and by describing the steps that you will take to build your argument.

4. Situate your argument within the scholarly conversation

Some types of research papers require a separate literature review in which you explore what others have written about your topic.

Even if you’re not required to have a formal literature review, you should still include at least a paragraph in which you engage with the scholarly debate on your chosen subject. Be sure to include direct quotes from your sources . You can use BibGuru’s citation generator to create accurate in-text citations for your quotes.

This section can come directly before your thesis statement or directly after it. In the former case, your state of the field will function as additional context for your thesis.

Frequently Asked Questions about how to write an introduction for a research paper

A good introduction provides specific background information on your topic, sets up your thesis statement, and includes signposts for what you’ll cover in the rest of the paper.

An introduction should include context, a thesis statement, and signposts.

Do not include generalizations, apologies for not being an expert, or dictionary definitions in your introduction.

The length of your introduction depends on the overall length of your paper. For instance, an introduction for an 8-10 page paper will likely be anywhere from 1-3 pages.

You can choose to start an introduction with a hook, an important statistic, an historical anecdote, or another specific piece of background information.

How to write a college essay outline

Make your life easier with our productivity and writing resources.

For students and teachers.

Logo of Peer Recognized

Peer Recognized

Make a name in academia

How to Write a Research Paper: the LEAP approach (+cheat sheet)

In this article I will show you how to write a research paper using the four LEAP writing steps. The LEAP academic writing approach is a step-by-step method for turning research results into a published paper .

The LEAP writing approach has been the cornerstone of the 70 + research papers that I have authored and the 3700+ citations these paper have accumulated within 9 years since the completion of my PhD. I hope the LEAP approach will help you just as much as it has helped me to make an real, tangible impact with my research.

What is the LEAP research paper writing approach?

I designed the LEAP writing approach not only for merely writing the papers. My goal with the writing system was to show young scientists how to first think about research results and then how to efficiently write each section of the research paper.

In other words, you will see how to write a research paper by first analyzing the results and then building a logical, persuasive arguments. In this way, instead of being afraid of writing research paper, you will be able to rely on the paper writing process to help you with what is the most demanding task in getting published – thinking.

The four research paper writing steps according to the LEAP approach:

LEAP research paper writing step 1: L

I will show each of these steps in detail. And you will be able to download the LEAP cheat sheet for using with every paper you write.

But before I tell you how to efficiently write a research paper, I want to show you what is the problem with the way scientists typically write a research paper and why the LEAP approach is more efficient.

How scientists typically write a research paper (and why it isn’t efficient)

Writing a research paper can be tough, especially for a young scientist. Your reasoning needs to be persuasive and thorough enough to convince readers of your arguments. The description has to be derived from research evidence, from prior art, and from your own judgment. This is a tough feat to accomplish.

The figure below shows the sequence of the different parts of a typical research paper. Depending on the scientific journal, some sections might be merged or nonexistent, but the general outline of a research paper will remain very similar.

Outline of a research paper, including Title, Abstract, Keywords, Introduction, Objective, Methods, Results, Discussion, Conclusions, References and Annexes

Here is the problem: Most people make the mistake of writing in this same sequence.

While the structure of scientific articles is designed to help the reader follow the research, it does little to help the scientist write the paper. This is because the layout of research articles starts with the broad (introduction) and narrows down to the specifics (results). See in the figure below how the research paper is structured in terms of the breath of information that each section entails.

How to write a research paper according to the LEAP approach

For a scientist, it is much easier to start writing a research paper with laying out the facts in the narrow sections (i.e. results), step back to describe them (i.e. write the discussion), and step back again to explain the broader picture in the introduction.

For example, it might feel intimidating to start writing a research paper by explaining your research’s global significance in the introduction, while it is easy to plot the figures in the results. When plotting the results, there is not much room for wiggle: the results are what they are.

Starting to write a research papers from the results is also more fun because you finally get to see and understand the complete picture of the research that you have worked on.

Most importantly, following the LEAP approach will help you first make sense of the results yourself and then clearly communicate them to the readers. That is because the sequence of writing allows you to slowly understand the meaning of the results and then develop arguments for presenting to your readers.

I have personally been able to write and submit a research article in three short days using this method.

Step 1: Lay Out the Facts

LEAP research paper writing step 1: Prepare charts and graphics, and describe what you see

You have worked long hours on a research project that has produced results and are no doubt curious to determine what they exactly mean. There is no better way to do this than by preparing figures, graphics and tables. This is what the first LEAP step is focused on – diving into the results.

How to p repare charts and tables for a research paper

Your first task is to try out different ways of visually demonstrating the research results. In many fields, the central items of a journal paper will be charts that are based on the data generated during research. In other fields, these might be conceptual diagrams, microscopy images, schematics and a number of other types of scientific graphics which should visually communicate the research study and its results to the readers. If you have reasonably small number of data points, data tables might be useful as well.

Tips for preparing charts and tables

  • Try multiple chart types but in the finished paper only use the one that best conveys the message you want to present to the readers
  • Follow the eight chart design progressions for selecting and refining a data chart for your paper: https://peerrecognized.com/chart-progressions
  • Prepare scientific graphics and visualizations for your paper using the scientific graphic design cheat sheet: https://peerrecognized.com/tools-for-creating-scientific-illustrations/

How to describe the results of your research

Now that you have your data charts, graphics and tables laid out in front of you – describe what you see in them. Seek to answer the question: What have I found?  Your statements should progress in a logical sequence and be backed by the visual information. Since, at this point, you are simply explaining what everyone should be able to see for themselves, you can use a declarative tone: The figure X demonstrates that…

Tips for describing the research results :

  • Answer the question: “ What have I found? “
  • Use declarative tone since you are simply describing observations

Step 2: Explain the results

LEAP research paper writing step 2: Define the message, discuss the results, write conclusions, refine the objective, and describe methodology

The core aspect of your research paper is not actually the results; it is the explanation of their meaning. In the second LEAP step, you will do some heavy lifting by guiding the readers through the results using logic backed by previous scientific research.

How to define the Message of a research paper

To define the central message of your research paper, imagine how you would explain your research to a colleague in 20 seconds . If you succeed in effectively communicating your paper’s message, a reader should be able to recount your findings in a similarly concise way even a year after reading it. This clarity will increase the chances that someone uses the knowledge you generated, which in turn raises the likelihood of citations to your research paper. 

Tips for defining the paper’s central message :

  • Write the paper’s core message in a single sentence or two bullet points
  • Write the core message in the header of the research paper manuscript

How to write the Discussion section of a research paper

In the discussion section you have to demonstrate why your research paper is worthy of publishing. In other words, you must now answer the all-important So what? question . How well you do so will ultimately define the success of your research paper.

Here are three steps to get started with writing the discussion section:

  • Write bullet points of the things that convey the central message of the research article (these may evolve into subheadings later on).
  • Make a list with the arguments or observations that support each idea.
  • Finally, expand on each point to make full sentences and paragraphs.

Tips for writing the discussion section:

  • What is the meaning of the results?
  • Was the hypothesis confirmed?
  • Write bullet points that support the core message
  • List logical arguments for each bullet point, group them into sections
  • Instead of repeating research timeline, use a presentation sequence that best supports your logic
  • Convert arguments to full paragraphs; be confident but do not overhype
  • Refer to both supportive and contradicting research papers for maximum credibility

How to write the Conclusions of a research paper

Since some readers might just skim through your research paper and turn directly to the conclusions, it is a good idea to make conclusion a standalone piece. In the first few sentences of the conclusions, briefly summarize the methodology and try to avoid using abbreviations (if you do, explain what they mean).

After this introduction, summarize the findings from the discussion section. Either paragraph style or bullet-point style conclusions can be used. I prefer the bullet-point style because it clearly separates the different conclusions and provides an easy-to-digest overview for the casual browser. It also forces me to be more succinct.

Tips for writing the conclusion section :

  • Summarize the key findings, starting with the most important one
  • Make conclusions standalone (short summary, avoid abbreviations)
  • Add an optional take-home message and suggest future research in the last paragraph

How to refine the Objective of a research paper

The objective is a short, clear statement defining the paper’s research goals. It can be included either in the final paragraph of the introduction, or as a separate subsection after the introduction. Avoid writing long paragraphs with in-depth reasoning, references, and explanation of methodology since these belong in other sections. The paper’s objective can often be written in a single crisp sentence.

Tips for writing the objective section :

  • The objective should ask the question that is answered by the central message of the research paper
  • The research objective should be clear long before writing a paper. At this point, you are simply refining it to make sure it is addressed in the body of the paper.

How to write the Methodology section of your research paper

When writing the methodology section, aim for a depth of explanation that will allow readers to reproduce the study . This means that if you are using a novel method, you will have to describe it thoroughly. If, on the other hand, you applied a standardized method, or used an approach from another paper, it will be enough to briefly describe it with reference to the detailed original source.

Remember to also detail the research population, mention how you ensured representative sampling, and elaborate on what statistical methods you used to analyze the results.

Tips for writing the methodology section :

  • Include enough detail to allow reproducing the research
  • Provide references if the methods are known
  • Create a methodology flow chart to add clarity
  • Describe the research population, sampling methodology, statistical methods for result analysis
  • Describe what methodology, test methods, materials, and sample groups were used in the research.

Step 3: Advertize the research

Step 3 of the LEAP writing approach is designed to entice the casual browser into reading your research paper. This advertising can be done with an informative title, an intriguing abstract, as well as a thorough explanation of the underlying need for doing the research within the introduction.

LEAP research paper writing step 3: Write introduction, prepare the abstract, compose title, and prepare highlights and graphical abstract

How to write the Introduction of a research paper

The introduction section should leave no doubt in the mind of the reader that what you are doing is important and that this work could push scientific knowledge forward. To do this convincingly, you will need to have a good knowledge of what is state-of-the-art in your field. You also need be able to see the bigger picture in order to demonstrate the potential impacts of your research work.

Think of the introduction as a funnel, going from wide to narrow, as shown in the figure below:

  • Start with a brief context to explain what do we already know,
  • Follow with the motivation for the research study and explain why should we care about it,
  • Explain the research gap you are going to bridge within this research paper,
  • Describe the approach you will take to solve the problem.

Context - Motivation - Research gap - Approach funnel for writing the introduction

Tips for writing the introduction section :

  • Follow the Context – Motivation – Research gap – Approach funnel for writing the introduction
  • Explain how others tried and how you plan to solve the research problem
  • Do a thorough literature review before writing the introduction
  • Start writing the introduction by using your own words, then add references from the literature

How to prepare the Abstract of a research paper

The abstract acts as your paper’s elevator pitch and is therefore best written only after the main text is finished. In this one short paragraph you must convince someone to take on the time-consuming task of reading your whole research article. So, make the paper easy to read, intriguing, and self-explanatory; avoid jargon and abbreviations.

How to structure the abstract of a research paper:

  • The abstract is a single paragraph that follows this structure:
  • Problem: why did we research this
  • Methodology: typically starts with the words “Here we…” that signal the start of own contribution.
  • Results: what we found from the research.
  • Conclusions: show why are the findings important

How to compose a research paper Title

The title is the ultimate summary of a research paper. It must therefore entice someone looking for information to click on a link to it and continue reading the article. A title is also used for indexing purposes in scientific databases, so a representative and optimized title will play large role in determining if your research paper appears in search results at all.

Tips for coming up with a research paper title:

  • Capture curiosity of potential readers using a clear and descriptive title
  • Include broad terms that are often searched
  • Add details that uniquely identify the researched subject of your research paper
  • Avoid jargon and abbreviations
  • Use keywords as title extension (instead of duplicating the words) to increase the chance of appearing in search results

How to prepare Highlights and Graphical Abstract

Highlights are three to five short bullet-point style statements that convey the core findings of the research paper. Notice that the focus is on the findings, not on the process of getting there.

A graphical abstract placed next to the textual abstract visually summarizes the entire research paper in a single, easy-to-follow figure. I show how to create a graphical abstract in my book Research Data Visualization and Scientific Graphics.

Tips for preparing highlights and graphical abstract:

  • In highlights show core findings of the research paper (instead of what you did in the study).
  • In graphical abstract show take-home message or methodology of the research paper. Learn more about creating a graphical abstract in this article.

Step 4: Prepare for submission

LEAP research paper writing step 4: Select the journal, fulfill journal requirements, write a cover letter, suggest reviewers, take a break and edit, address review comments.

Sometimes it seems that nuclear fusion will stop on the star closest to us (read: the sun will stop to shine) before a submitted manuscript is published in a scientific journal. The publication process routinely takes a long time, and after submitting the manuscript you have very little control over what happens. To increase the chances of a quick publication, you must do your homework before submitting the manuscript. In the fourth LEAP step, you make sure that your research paper is published in the most appropriate journal as quickly and painlessly as possible.

How to select a scientific Journal for your research paper

The best way to find a journal for your research paper is it to review which journals you used while preparing your manuscript. This source listing should provide some assurance that your own research paper, once published, will be among similar articles and, thus, among your field’s trusted sources.

good introductions for a research paper

After this initial selection of hand-full of scientific journals, consider the following six parameters for selecting the most appropriate journal for your research paper (read this article to review each step in detail):

  • Scope and publishing history
  • Ranking and Recognition
  • Publishing time
  • Acceptance rate
  • Content requirements
  • Access and Fees

How to select a journal for your research paper:

  • Use the six parameters to select the most appropriate scientific journal for your research paper
  • Use the following tools for journal selection: https://peerrecognized.com/journals
  • Follow the journal’s “Authors guide” formatting requirements

How to Edit you manuscript

No one can write a finished research paper on their first attempt. Before submitting, make sure to take a break from your work for a couple of days, or even weeks. Try not to think about the manuscript during this time. Once it has faded from your memory, it is time to return and edit. The pause will allow you to read the manuscript from a fresh perspective and make edits as necessary.

I have summarized the most useful research paper editing tools in this article.

Tips for editing a research paper:

  • Take time away from the research paper to forget about it; then returning to edit,
  • Start by editing the content: structure, headings, paragraphs, logic, figures
  • Continue by editing the grammar and language; perform a thorough language check using academic writing tools
  • Read the entire paper out loud and correct what sounds weird

How to write a compelling Cover Letter for your paper

Begin the cover letter by stating the paper’s title and the type of paper you are submitting (review paper, research paper, short communication). Next, concisely explain why your study was performed, what was done, and what the key findings are. State why the results are important and what impact they might have in the field. Make sure you mention how your approach and findings relate to the scope of the journal in order to show why the article would be of interest to the journal’s readers.

I wrote a separate article that explains what to include in a cover letter here. You can also download a cover letter template from the article.

Tips for writing a cover letter:

  • Explain how the findings of your research relate to journal’s scope
  • Tell what impact the research results will have
  • Show why the research paper will interest the journal’s audience
  • Add any legal statements as required in journal’s guide for authors

How to Answer the Reviewers

Reviewers will often ask for new experiments, extended discussion, additional details on the experimental setup, and so forth. In principle, your primary winning tactic will be to agree with the reviewers and follow their suggestions whenever possible. After all, you must earn their blessing in order to get your paper published.

Be sure to answer each review query and stick to the point. In the response to the reviewers document write exactly where in the paper you have made any changes. In the paper itself, highlight the changes using a different color. This way the reviewers are less likely to re-read the entire article and suggest new edits.

In cases when you don’t agree with the reviewers, it makes sense to answer more thoroughly. Reviewers are scientifically minded people and so, with enough logical and supported argument, they will eventually be willing to see things your way.

Tips for answering the reviewers:

  • Agree with most review comments, but if you don’t, thoroughly explain why
  • Highlight changes in the manuscript
  • Do not take the comments personally and cool down before answering

The LEAP research paper writing cheat sheet

Imagine that you are back in grad school and preparing to take an exam on the topic: “How to write a research paper”. As an exemplary student, you would, most naturally, create a cheat sheet summarizing the subject… Well, I did it for you.

This one-page summary of the LEAP research paper writing technique will remind you of the key research paper writing steps. Print it out and stick it to a wall in your office so that you can review it whenever you are writing a new research paper.

The LEAP research paper writing cheat sheet

Now that we have gone through the four LEAP research paper writing steps, I hope you have a good idea of how to write a research paper. It can be an enjoyable process and once you get the hang of it, the four LEAP writing steps should even help you think about and interpret the research results. This process should enable you to write a well-structured, concise, and compelling research paper.

Have fund with writing your next research paper. I hope it will turn out great!

Learn writing papers that get cited

The LEAP writing approach is a blueprint for writing research papers. But to be efficient and write papers that get cited, you need more than that.

My name is Martins Zaumanis and in my interactive course Research Paper Writing Masterclass I will show you how to  visualize  your research results,  frame a message  that convinces your readers, and write  each section  of the paper. Step-by-step.

And of course – you will learn to respond the infamous  Reviewer No.2.

Research Paper Writing Masterclass by Martins Zaumanis

Hey! My name is Martins Zaumanis and I am a materials scientist in Switzerland ( Google Scholar ). As the first person in my family with a PhD, I have first-hand experience of the challenges starting scientists face in academia. With this blog, I want to help young researchers succeed in academia. I call the blog “Peer Recognized”, because peer recognition is what lifts academic careers and pushes science forward.

Besides this blog, I have written the Peer Recognized book series and created the Peer Recognized Academy offering interactive online courses.

Related articles:

Six journal selection steps

One comment

  • Pingback: Research Paper Outline with Key Sentence Skeleton (+Paper Template)

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I want to join the Peer Recognized newsletter!

This site uses Akismet to reduce spam. Learn how your comment data is processed .

Privacy Overview

CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Copyright © 2024 Martins Zaumanis

Contacts:  [email protected]  

Privacy Policy 

Starting Your Research Paper: Writing an Introductory Paragraph

  • Choosing Your Topic
  • Define Keywords
  • Planning Your Paper
  • Writing an Introductory Paragraph

The Dreaded Introductory Paragraph

Writing the introductory paragraph can be a frustrating and slow process -- but it doesn't have to be.  If you planned your paper out, then most of the introductory paragraph is already written.  Now you just need a beginning and an end.

 
     
 
     
  for writing thesis statements.

Here's an introductory paragraph for a paper I wrote.  I started the paper with a factoid, then presented each main point of my paper and then ended with my thesis statement.

  Breakdown:

1st Sentence   I lead with a quick factoid about comics.
2nd & 3rd These sentences define graphic novels and gives a brief history. This is also how the body of my paper starts.
4rd Sentence This sentence introduces the current issue. See how I gave the history first and now give the current issue? That's flow.
5th Sentence Since I was pro-graphic novels, I gave the opposing (con) side first. Remember if you're picking a side, you give the other side first and then your side.
6th Sentence Now I can give my pro-graphic novel argument.
7th Sentence This further expands my pro-graphic novel argument.
8th Sentence This is my thesis statement.
  • << Previous: Planning Your Paper
  • Last Updated: Feb 12, 2024 12:16 PM
  • URL: https://libguides.astate.edu/papers

A-State Library Facebook

  • PRO Courses Guides New Tech Help Pro Expert Videos About wikiHow Pro Upgrade Sign In
  • EDIT Edit this Article
  • EXPLORE Tech Help Pro About Us Random Article Quizzes Request a New Article Community Dashboard This Or That Game Happiness Hub Popular Categories Arts and Entertainment Artwork Books Movies Computers and Electronics Computers Phone Skills Technology Hacks Health Men's Health Mental Health Women's Health Relationships Dating Love Relationship Issues Hobbies and Crafts Crafts Drawing Games Education & Communication Communication Skills Personal Development Studying Personal Care and Style Fashion Hair Care Personal Hygiene Youth Personal Care School Stuff Dating All Categories Arts and Entertainment Finance and Business Home and Garden Relationship Quizzes Cars & Other Vehicles Food and Entertaining Personal Care and Style Sports and Fitness Computers and Electronics Health Pets and Animals Travel Education & Communication Hobbies and Crafts Philosophy and Religion Work World Family Life Holidays and Traditions Relationships Youth
  • Browse Articles
  • Learn Something New
  • Quizzes Hot
  • Happiness Hub
  • This Or That Game
  • Train Your Brain
  • Explore More
  • Support wikiHow
  • About wikiHow
  • Log in / Sign up
  • Education and Communications
  • College University and Postgraduate
  • Academic Writing
  • Research Papers

How to Write a Research Introduction

Last Updated: December 6, 2023 Fact Checked

This article was co-authored by Megan Morgan, PhD . Megan Morgan is a Graduate Program Academic Advisor in the School of Public & International Affairs at the University of Georgia. She earned her PhD in English from the University of Georgia in 2015. There are 7 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 2,657,188 times.

The introduction to a research paper can be the most challenging part of the paper to write. The length of the introduction will vary depending on the type of research paper you are writing. An introduction should announce your topic, provide context and a rationale for your work, before stating your research questions and hypothesis. Well-written introductions set the tone for the paper, catch the reader's interest, and communicate the hypothesis or thesis statement.

Introducing the Topic of the Paper

Step 1 Announce your research topic.

  • In scientific papers this is sometimes known as an "inverted triangle", where you start with the broadest material at the start, before zooming in on the specifics. [2] X Research source
  • The sentence "Throughout the 20th century, our views of life on other planets have drastically changed" introduces a topic, but does so in broad terms.
  • It provides the reader with an indication of the content of the essay and encourages them to read on.

Step 2 Consider referring to key words.

  • For example, if you were writing a paper about the behaviour of mice when exposed to a particular substance, you would include the word "mice", and the scientific name of the relevant compound in the first sentences.
  • If you were writing a history paper about the impact of the First World War on gender relations in Britain, you should mention those key words in your first few lines.

Step 3 Define any key terms or concepts.

  • This is especially important if you are attempting to develop a new conceptualization that uses language and terminology your readers may be unfamiliar with.

Step 4 Introduce the topic through an anecdote or quotation.

  • If you use an anecdote ensure that is short and highly relevant for your research. It has to function in the same way as an alternative opening, namely to announce the topic of your research paper to your reader.
  • For example, if you were writing a sociology paper about re-offending rates among young offenders, you could include a brief story of one person whose story reflects and introduces your topic.
  • This kind of approach is generally not appropriate for the introduction to a natural or physical sciences research paper where the writing conventions are different.

Establishing the Context for Your Paper

Step 1 Include a brief literature review.

  • It is important to be concise in the introduction, so provide an overview on recent developments in the primary research rather than a lengthy discussion.
  • You can follow the "inverted triangle" principle to focus in from the broader themes to those to which you are making a direct contribution with your paper.
  • A strong literature review presents important background information to your own research and indicates the importance of the field.

Step 2 Use the literature to focus in on your contribution.

  • By making clear reference to existing work you can demonstrate explicitly the specific contribution you are making to move the field forward.
  • You can identify a gap in the existing scholarship and explain how you are addressing it and moving understanding forward.

Step 3 Elaborate on the rationale of your paper.

  • For example, if you are writing a scientific paper you could stress the merits of the experimental approach or models you have used.
  • Stress what is novel in your research and the significance of your new approach, but don't give too much detail in the introduction.
  • A stated rationale could be something like: "the study evaluates the previously unknown anti-inflammatory effects of a topical compound in order to evaluate its potential clinical uses".

Specifying Your Research Questions and Hypothesis

Step 1 State your research questions.

  • The research question or questions generally come towards the end of the introduction, and should be concise and closely focused.
  • The research question might recall some of the key words established in the first few sentences and the title of your paper.
  • An example of a research question could be "what were the consequences of the North American Free Trade Agreement on the Mexican export economy?"
  • This could be honed further to be specific by referring to a particular element of the Free Trade Agreement and the impact on a particular industry in Mexico, such as clothing manufacture.
  • A good research question should shape a problem into a testable hypothesis.

Step 2 Indicate your hypothesis.

  • If possible try to avoid using the word "hypothesis" and rather make this implicit in your writing. This can make your writing appear less formulaic.
  • In a scientific paper, giving a clear one-sentence overview of your results and their relation to your hypothesis makes the information clear and accessible. [10] X Trustworthy Source PubMed Central Journal archive from the U.S. National Institutes of Health Go to source
  • An example of a hypothesis could be "mice deprived of food for the duration of the study were expected to become more lethargic than those fed normally".

Step 3 Outline the structure of your paper.

  • This is not always necessary and you should pay attention to the writing conventions in your discipline.
  • In a natural sciences paper, for example, there is a fairly rigid structure which you will be following.
  • A humanities or social science paper will most likely present more opportunities to deviate in how you structure your paper.

Research Introduction Help

good introductions for a research paper

Community Q&A

Community Answer

  • Use your research papers' outline to help you decide what information to include when writing an introduction. Thanks Helpful 0 Not Helpful 1
  • Consider drafting your introduction after you have already completed the rest of your research paper. Writing introductions last can help ensure that you don't leave out any major points. Thanks Helpful 0 Not Helpful 0

good introductions for a research paper

  • Avoid emotional or sensational introductions; these can create distrust in the reader. Thanks Helpful 51 Not Helpful 12
  • Generally avoid using personal pronouns in your introduction, such as "I," "me," "we," "us," "my," "mine," or "our." Thanks Helpful 32 Not Helpful 7
  • Don't overwhelm the reader with an over-abundance of information. Keep the introduction as concise as possible by saving specific details for the body of your paper. Thanks Helpful 25 Not Helpful 14

You Might Also Like

Publish a Research Paper

  • ↑ https://library.sacredheart.edu/c.php?g=29803&p=185916
  • ↑ https://www.aresearchguide.com/inverted-pyramid-structure-in-writing.html
  • ↑ https://libguides.usc.edu/writingguide/introduction
  • ↑ https://writing.wisc.edu/Handbook/PlanResearchPaper.html
  • ↑ https://dept.writing.wisc.edu/wac/writing-an-introduction-for-a-scientific-paper/
  • ↑ https://writing.wisc.edu/handbook/assignments/planresearchpaper/
  • ↑ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178846/

About This Article

Megan Morgan, PhD

To introduce your research paper, use the first 1-2 sentences to describe your general topic, such as “women in World War I.” Include and define keywords, such as “gender relations,” to show your reader where you’re going. Mention previous research into the topic with a phrase like, “Others have studied…”, then transition into what your contribution will be and why it’s necessary. Finally, state the questions that your paper will address and propose your “answer” to them as your thesis statement. For more information from our English Ph.D. co-author about how to craft a strong hypothesis and thesis, keep reading! Did this summary help you? Yes No

  • Send fan mail to authors

Reader Success Stories

Abdulrahman Omar

Abdulrahman Omar

Oct 5, 2018

Did this article help you?

good introductions for a research paper

May 9, 2021

Lavanya Gopakumar

Lavanya Gopakumar

Oct 1, 2016

Dengkai Zhang

Dengkai Zhang

May 14, 2018

Leslie Mae Cansana

Leslie Mae Cansana

Sep 22, 2016

Do I Have a Dirty Mind Quiz

Featured Articles

Enjoy Your Preteen Years

Trending Articles

Pirate Name Generator

Watch Articles

Make Fluffy Pancakes

  • Terms of Use
  • Privacy Policy
  • Do Not Sell or Share My Info
  • Not Selling Info

wikiHow Tech Help Pro:

Level up your tech skills and stay ahead of the curve

The Writing Center • University of North Carolina at Chapel Hill

Introductions

What this handout is about.

This handout will explain the functions of introductions, offer strategies for creating effective introductions, and provide some examples of less effective introductions to avoid.

The role of introductions

Introductions and conclusions can be the most difficult parts of papers to write. Usually when you sit down to respond to an assignment, you have at least some sense of what you want to say in the body of your paper. You might have chosen a few examples you want to use or have an idea that will help you answer the main question of your assignment; these sections, therefore, may not be as hard to write. And it’s fine to write them first! But in your final draft, these middle parts of the paper can’t just come out of thin air; they need to be introduced and concluded in a way that makes sense to your reader.

Your introduction and conclusion act as bridges that transport your readers from their own lives into the “place” of your analysis. If your readers pick up your paper about education in the autobiography of Frederick Douglass, for example, they need a transition to help them leave behind the world of Chapel Hill, television, e-mail, and The Daily Tar Heel and to help them temporarily enter the world of nineteenth-century American slavery. By providing an introduction that helps your readers make a transition between their own world and the issues you will be writing about, you give your readers the tools they need to get into your topic and care about what you are saying. Similarly, once you’ve hooked your readers with the introduction and offered evidence to prove your thesis, your conclusion can provide a bridge to help your readers make the transition back to their daily lives. (See our handout on conclusions .)

Note that what constitutes a good introduction may vary widely based on the kind of paper you are writing and the academic discipline in which you are writing it. If you are uncertain what kind of introduction is expected, ask your instructor.

Why bother writing a good introduction?

You never get a second chance to make a first impression. The opening paragraph of your paper will provide your readers with their initial impressions of your argument, your writing style, and the overall quality of your work. A vague, disorganized, error-filled, off-the-wall, or boring introduction will probably create a negative impression. On the other hand, a concise, engaging, and well-written introduction will start your readers off thinking highly of you, your analytical skills, your writing, and your paper.

Your introduction is an important road map for the rest of your paper. Your introduction conveys a lot of information to your readers. You can let them know what your topic is, why it is important, and how you plan to proceed with your discussion. In many academic disciplines, your introduction should contain a thesis that will assert your main argument. Your introduction should also give the reader a sense of the kinds of information you will use to make that argument and the general organization of the paragraphs and pages that will follow. After reading your introduction, your readers should not have any major surprises in store when they read the main body of your paper.

Ideally, your introduction will make your readers want to read your paper. The introduction should capture your readers’ interest, making them want to read the rest of your paper. Opening with a compelling story, an interesting question, or a vivid example can get your readers to see why your topic matters and serve as an invitation for them to join you for an engaging intellectual conversation (remember, though, that these strategies may not be suitable for all papers and disciplines).

Strategies for writing an effective introduction

Start by thinking about the question (or questions) you are trying to answer. Your entire essay will be a response to this question, and your introduction is the first step toward that end. Your direct answer to the assigned question will be your thesis, and your thesis will likely be included in your introduction, so it is a good idea to use the question as a jumping off point. Imagine that you are assigned the following question:

Drawing on the Narrative of the Life of Frederick Douglass , discuss the relationship between education and slavery in 19th-century America. Consider the following: How did white control of education reinforce slavery? How did Douglass and other enslaved African Americans view education while they endured slavery? And what role did education play in the acquisition of freedom? Most importantly, consider the degree to which education was or was not a major force for social change with regard to slavery.

You will probably refer back to your assignment extensively as you prepare your complete essay, and the prompt itself can also give you some clues about how to approach the introduction. Notice that it starts with a broad statement and then narrows to focus on specific questions from the book. One strategy might be to use a similar model in your own introduction—start off with a big picture sentence or two and then focus in on the details of your argument about Douglass. Of course, a different approach could also be very successful, but looking at the way the professor set up the question can sometimes give you some ideas for how you might answer it. (See our handout on understanding assignments for additional information on the hidden clues in assignments.)

Decide how general or broad your opening should be. Keep in mind that even a “big picture” opening needs to be clearly related to your topic; an opening sentence that said “Human beings, more than any other creatures on earth, are capable of learning” would be too broad for our sample assignment about slavery and education. If you have ever used Google Maps or similar programs, that experience can provide a helpful way of thinking about how broad your opening should be. Imagine that you’re researching Chapel Hill. If what you want to find out is whether Chapel Hill is at roughly the same latitude as Rome, it might make sense to hit that little “minus” sign on the online map until it has zoomed all the way out and you can see the whole globe. If you’re trying to figure out how to get from Chapel Hill to Wrightsville Beach, it might make more sense to zoom in to the level where you can see most of North Carolina (but not the rest of the world, or even the rest of the United States). And if you are looking for the intersection of Ridge Road and Manning Drive so that you can find the Writing Center’s main office, you may need to zoom all the way in. The question you are asking determines how “broad” your view should be. In the sample assignment above, the questions are probably at the “state” or “city” level of generality. When writing, you need to place your ideas in context—but that context doesn’t generally have to be as big as the whole galaxy!

Try writing your introduction last. You may think that you have to write your introduction first, but that isn’t necessarily true, and it isn’t always the most effective way to craft a good introduction. You may find that you don’t know precisely what you are going to argue at the beginning of the writing process. It is perfectly fine to start out thinking that you want to argue a particular point but wind up arguing something slightly or even dramatically different by the time you’ve written most of the paper. The writing process can be an important way to organize your ideas, think through complicated issues, refine your thoughts, and develop a sophisticated argument. However, an introduction written at the beginning of that discovery process will not necessarily reflect what you wind up with at the end. You will need to revise your paper to make sure that the introduction, all of the evidence, and the conclusion reflect the argument you intend. Sometimes it’s easiest to just write up all of your evidence first and then write the introduction last—that way you can be sure that the introduction will match the body of the paper.

Don’t be afraid to write a tentative introduction first and then change it later. Some people find that they need to write some kind of introduction in order to get the writing process started. That’s fine, but if you are one of those people, be sure to return to your initial introduction later and rewrite if necessary.

Open with something that will draw readers in. Consider these options (remembering that they may not be suitable for all kinds of papers):

  • an intriguing example —for example, Douglass writes about a mistress who initially teaches him but then ceases her instruction as she learns more about slavery.
  • a provocative quotation that is closely related to your argument —for example, Douglass writes that “education and slavery were incompatible with each other.” (Quotes from famous people, inspirational quotes, etc. may not work well for an academic paper; in this example, the quote is from the author himself.)
  • a puzzling scenario —for example, Frederick Douglass says of slaves that “[N]othing has been left undone to cripple their intellects, darken their minds, debase their moral nature, obliterate all traces of their relationship to mankind; and yet how wonderfully they have sustained the mighty load of a most frightful bondage, under which they have been groaning for centuries!” Douglass clearly asserts that slave owners went to great lengths to destroy the mental capacities of slaves, yet his own life story proves that these efforts could be unsuccessful.
  • a vivid and perhaps unexpected anecdote —for example, “Learning about slavery in the American history course at Frederick Douglass High School, students studied the work slaves did, the impact of slavery on their families, and the rules that governed their lives. We didn’t discuss education, however, until one student, Mary, raised her hand and asked, ‘But when did they go to school?’ That modern high school students could not conceive of an American childhood devoid of formal education speaks volumes about the centrality of education to American youth today and also suggests the significance of the deprivation of education in past generations.”
  • a thought-provoking question —for example, given all of the freedoms that were denied enslaved individuals in the American South, why does Frederick Douglass focus his attentions so squarely on education and literacy?

Pay special attention to your first sentence. Start off on the right foot with your readers by making sure that the first sentence actually says something useful and that it does so in an interesting and polished way.

How to evaluate your introduction draft

Ask a friend to read your introduction and then tell you what they expect the paper will discuss, what kinds of evidence the paper will use, and what the tone of the paper will be. If your friend is able to predict the rest of your paper accurately, you probably have a good introduction.

Five kinds of less effective introductions

1. The placeholder introduction. When you don’t have much to say on a given topic, it is easy to create this kind of introduction. Essentially, this kind of weaker introduction contains several sentences that are vague and don’t really say much. They exist just to take up the “introduction space” in your paper. If you had something more effective to say, you would probably say it, but in the meantime this paragraph is just a place holder.

Example: Slavery was one of the greatest tragedies in American history. There were many different aspects of slavery. Each created different kinds of problems for enslaved people.

2. The restated question introduction. Restating the question can sometimes be an effective strategy, but it can be easy to stop at JUST restating the question instead of offering a more specific, interesting introduction to your paper. The professor or teaching assistant wrote your question and will be reading many essays in response to it—they do not need to read a whole paragraph that simply restates the question.

Example: The Narrative of the Life of Frederick Douglass discusses the relationship between education and slavery in 19th century America, showing how white control of education reinforced slavery and how Douglass and other enslaved African Americans viewed education while they endured. Moreover, the book discusses the role that education played in the acquisition of freedom. Education was a major force for social change with regard to slavery.

3. The Webster’s Dictionary introduction. This introduction begins by giving the dictionary definition of one or more of the words in the assigned question. Anyone can look a word up in the dictionary and copy down what Webster says. If you want to open with a discussion of an important term, it may be far more interesting for you (and your reader) if you develop your own definition of the term in the specific context of your class and assignment. You may also be able to use a definition from one of the sources you’ve been reading for class. Also recognize that the dictionary is also not a particularly authoritative work—it doesn’t take into account the context of your course and doesn’t offer particularly detailed information. If you feel that you must seek out an authority, try to find one that is very relevant and specific. Perhaps a quotation from a source reading might prove better? Dictionary introductions are also ineffective simply because they are so overused. Instructors may see a great many papers that begin in this way, greatly decreasing the dramatic impact that any one of those papers will have.

Example: Webster’s dictionary defines slavery as “the state of being a slave,” as “the practice of owning slaves,” and as “a condition of hard work and subjection.”

4. The “dawn of man” introduction. This kind of introduction generally makes broad, sweeping statements about the relevance of this topic since the beginning of time, throughout the world, etc. It is usually very general (similar to the placeholder introduction) and fails to connect to the thesis. It may employ cliches—the phrases “the dawn of man” and “throughout human history” are examples, and it’s hard to imagine a time when starting with one of these would work. Instructors often find them extremely annoying.

Example: Since the dawn of man, slavery has been a problem in human history.

5. The book report introduction. This introduction is what you had to do for your elementary school book reports. It gives the name and author of the book you are writing about, tells what the book is about, and offers other basic facts about the book. You might resort to this sort of introduction when you are trying to fill space because it’s a familiar, comfortable format. It is ineffective because it offers details that your reader probably already knows and that are irrelevant to the thesis.

Example: Frederick Douglass wrote his autobiography, Narrative of the Life of Frederick Douglass, An American Slave , in the 1840s. It was published in 1986 by Penguin Books. In it, he tells the story of his life.

And now for the conclusion…

Writing an effective introduction can be tough. Try playing around with several different options and choose the one that ends up sounding best to you!

Just as your introduction helps readers make the transition to your topic, your conclusion needs to help them return to their daily lives–but with a lasting sense of how what they have just read is useful or meaningful. Check out our handout on  conclusions for tips on ending your paper as effectively as you began it!

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Douglass, Frederick. 1995. Narrative of the Life of Frederick Douglass, an American Slave, Written by Himself . New York: Dover.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

Make a Gift

How to Write an Introduction For a Research Paper

Learn how to write a strong and efficient research paper introduction by following the suitable structure and avoiding typical errors.

' src=

An introduction to any type of paper is sometimes misunderstood as the beginning; yet, an introduction is actually intended to present your chosen subject to the audience in a way that makes it more appealing and leaves your readers thirsty for more information. After the title and abstract, your audience will read the introduction, thus it’s critical to get off to a solid start.  

This article includes instructions on how to write an introduction for a research paper that engages the reader in your research. You can produce a strong opening for your research paper if you stick to the format and a few basic principles.

What is An Introduction To a Research Paper?

An introduction is the opening section of a research paper and the section that a reader is likely to read first, in which the objective and goals of the subsequent writing are stated. 

The introduction serves numerous purposes. It provides context for your research, explains your topic and objectives, and provides an outline of the work. A solid introduction will establish the tone for the remainder of your paper, enticing readers to continue reading through the methodology, findings, and discussion. 

Even though introductions are generally presented at the beginning of a document, we must distinguish an introduction from the beginning of your research. An introduction, as the name implies, is supposed to introduce your subject without extending it. All relevant information and facts should be placed in the body and conclusion, not the introduction.

Structure Of An Introduction

Before explaining how to write an introduction for a research paper , it’s necessary to comprehend a structure that will make your introduction stronger and more straightforward.

A Good Hook

A hook is one of the most effective research introduction openers. A hook’s objective is to stimulate the reader’s interest to read the research paper.  There are various approaches you may take to generate a strong hook:  startling facts, a question, a brief overview, or even a quotation. 

Broad Overview

Following an excellent hook, you should present a wide overview of your major issue and some background information on your research. If you’re unsure about how to begin an essay introduction, the best approach is to offer a basic explanation of your topic before delving into specific issues. Simply said, you should begin with general information and then narrow it down to your relevant topics.

After offering some background information regarding your research’s main topic, go on to give readers a better understanding of what you’ll be covering throughout your research. In this section of your introduction, you should swiftly clarify your important topics in the sequence in which they will be addressed later, gradually introducing your thesis statement. You can use some  The following are some critical questions to address in this section of your introduction: Who? What? Where? When? How? And why is that?

Thesis Statement

The thesis statement, which must be stated in the beginning clause of your research since your entire research revolves around it, is the most important component of your research.

A thesis statement presents your audience with a quick overview of the research’s main assertion. In the body section of your work, your key argument is what you will expose or debate about it. An excellent thesis statement is usually very succinct, accurate, explicit, clear, and focused. Typically, your thesis should be at the conclusion of your introductory paragraph/section.

Tips for Writing a Strong Introduction

Aside from the good structure, here are a few tips to make your introduction strong and accurate:

  • Keep in mind the aim of your research and make sure your introduction supports it.
  • Use an appealing and relevant hook that catches the reader’s attention right away.
  • Make it obvious to your readers what your stance is.
  • Demonstrate your knowledge of your subject.
  • Provide your readers with a road map to help them understand what you will address throughout the research.
  • Be succinct – it is advised that your opening introduction consists of around 8-9 percent of the overall amount of words in your article (for example, 160 words for a 2000 words essay). 
  • Make a strong and unambiguous thesis statement.
  • Explain why the article is significant in 1-2 sentences.
  • Remember to keep it interesting.

Mistakes to Avoid in Your Introduction

Check out what not to do and what to avoid now that you know the structure and how to write an introduction for a research paper .

  • Lacking a feeling of direction or purpose.
  • Giving out too much.
  • Creating lengthy paragraphs.
  • Excessive or insufficient background, literature, and theory.
  • Including material that should be placed in the body and conclusion.
  • Not writing enough or writing excessively.
  • Using too many quotes.

Unleash the Power of Infographics with Mind the Graph

Do you believe your research is not efficient in communicating precisely or is not aesthetically appealing? Use the Mind The Graph tool to create great infographics and add more value to your research.

How to Write a Conclusion for a Research Paper

Subscribe to our newsletter

Exclusive high quality content about effective visual communication in science.

Sign Up for Free

Try the best infographic maker and promote your research with scientifically-accurate beautiful figures

no credit card required

About Jessica Abbadia

Jessica Abbadia is a lawyer that has been working in Digital Marketing since 2020, improving organic performance for apps and websites in various regions through ASO and SEO. Currently developing scientific and intellectual knowledge for the community's benefit. Jessica is an animal rights activist who enjoys reading and drinking strong coffee.

Content tags

en_US

UCI Libraries Mobile Site

  • Langson Library
  • Science Library
  • Grunigen Medical Library
  • Law Library
  • Connect From Off-Campus
  • Accessibility
  • Gateway Study Center

Libaries home page

Email this link

Writing a scientific paper.

  • Writing a lab report

What is a "good" introduction?

Citing sources in the introduction, "introduction checklist" from: how to write a good scientific paper. chris a. mack. spie. 2018..

  • LITERATURE CITED
  • Bibliography of guides to scientific writing and presenting
  • Peer Review
  • Presentations
  • Lab Report Writing Guides on the Web

This is where you describe briefly and clearly why you are writing the paper. The introduction supplies sufficient background information for the reader to understand and evaluate the experiment you did. It also supplies a rationale for the study.

  • Present the problem and the proposed solution
  • Presents nature and scope of the problem investigated
  • Reviews the pertinent literature to orient the reader
  • States the method of the experiment
  • State the principle results of the experiment

It is important to cite sources in the introduction section of your paper as evidence of the claims you are making. There are ways of citing sources in the text so that the reader can find the full reference in the literature cited section at the end of the paper, yet the flow of the reading is not badly interrupted. Below are some example of how this can be done:     "Smith (1983) found that N-fixing plants could be infected by several different species of Rhizobium."     "Walnut trees are known to be allelopathic (Smith 1949,  Bond et al. 1955, Jones and Green 1963)."     "Although the presence of Rhizobium normally increases the growth of legumes (Nguyen 1987), the opposite effect has been observed (Washington 1999)." Note that articles by one or two authors are always cited in the text using their last names. However, if there are more than two authors, the last name of the 1st author is given followed by the abbreviation et al. which is Latin for "and others". 

From:  https://writingcenter.gmu.edu/guides/imrad-reports-introductions

  • Indicate the field of the work, why this field is important, and what has already been done (with proper citations).
  • Indicate a gap, raise a research question, or challenge prior work in this territory.
  • Outline the purpose and announce the present research, clearly indicating what is novel and why it is significant.
  • Avoid: repeating the abstract; providing unnecessary background information; exaggerating the importance of the work; claiming novelty without a proper literature search. 
  • << Previous: ABSTRACT
  • Next: METHODS >>
  • Last Updated: Aug 4, 2023 9:33 AM
  • URL: https://guides.lib.uci.edu/scientificwriting

Off-campus? Please use the Software VPN and choose the group UCIFull to access licensed content. For more information, please Click here

Software VPN is not available for guests, so they may not have access to some content when connecting from off-campus.

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Logo

  • A Research Guide
  • Research Paper Guide

How to Write an Introduction for a Research Paper

  • Purpose of intro
  • Key elements
  • Writing an effective intro
  • Step-by-step guide
  • Research intro checklist
  • Introduction formats
  • Good and bad examples

How to Write an Introduction for a Research Paper

An introductory paragraph is vital for any academic paper. It allows you to show reviewers why your research topic is worth reading about. In this article, we will explore the tips to make a good introduction paragraph. You’ll get a step-by-step tutorial on writing your paper’s informative yet laconic intro.

What is the purpose of an introduction?

The purpose of a research paper intro is to provide an overview and context for the study being conducted. A research paper engages the reader, establishes the importance of the research topic, and outlines the study’s objectives and scope.

The paper intro also presents the question or hypothesis and summarizes relevant background characteristics and existing literature.

An effective introduction helps the reader understand the significance and relevance of the research paper and sets the stage for the subsequent sections. The introduction captures the reader’s attention and creates a foundation for understanding the research and its contributions.

The key elements of a scientific paper introduction

The introduction of your research paper should include several key elements, including the problem statement, hypothesis/thesis/research question, purpose, and background.

Let’s explore each of these parts of the research paper intro in detail:

  • Problem Statement : identifies the specific issue or gap in knowledge that the research paper aims to address. It highlights the problem’s relevance, significance, and potential impact on the field of study. The problem statement sets the stage for the research by clearly stating the project or research gap.
  • Hypothesis / Thesis / Research Question : a paper hypothesis predicts the relationship between variables, a thesis statement presents the main argument or claim, and a research question seeks to put a specific aspect on a research paper.
  • Purpose: describes the overall objective or goal the research paper aims to achieve. It outlines the researcher’s intention and provides a clear direction for the investigation. The purpose statement typically explains why the research is being conducted and what the researcher hopes to accomplish by the end of the study.
  • Background : provides the necessary context and information to familiarize readers with the research paper. It presents a concise review of the relevant literature, previous studies, and theoretical frameworks that have shaped the understanding of the problem.

Shortly, the introduction section of a research paper combines these key elements to introduce the problem, state the hypothesis/thesis/research question, define the paper’s purpose, and provide the background necessary for readers to understand the significance and context of the study.

How to write an effective intro?

To start an introduction for a research paper, consider the following steps:

  • Hook the reader : begin with a compelling opening sentence or a thought-provoking statement that grabs the reader’s attention. This could be an interesting fact, a relevant anecdote, or a surprising statistic related to your research paper.
  • Provide background information : offer a brief overview of the paper and its significance in the field. This helps to improve the structure of an introduction and demonstrate why it is important to investigate the point further in a paper.
  • State the problem : clearly articulate the problem statement or research gap your study aims to address. Explain the specific issue or gap in knowledge that your research paper seeks to explore, emphasizing its relevance and potential impact.
  • Present the research question/hypothesis/thesis : formulate a concise and focused research question, hypothesis, or thesis statement in the intro that guides your scientific paper. This sets the direction for your research and provides a clear focus for the reader.
  • Outline the purpose and objectives : explain the overall purpose of your research paper and the specific objectives you aim to achieve. This helps readers understand why your study is being conducted and what you hope to accomplish.
  • Preview the structure : briefly introduce the organization and structure of your research paper. Mention the main sections or components that will be covered, giving readers a sense of what to expect as they continue reading the paper.

Remember, the intro should be concise and engaging, providing a clear roadmap for your research and capturing the reader’s interest from the very beginning. There are different ways to start a research paper, and you can pick the intro that suits you best.

Writing an introduction to a research paper: key steps

Here’s a short guide on getting you started with an introduction:

  • Start with an attention-grabbing opening : begin your intro with a captivating statement, a relevant quote, a surprising fact, or an intriguing anecdote. This will engage the reader’s interest and make them curious about your research paper.
  • Provide background information : write a brief overview of the research topic to provide context and establish the importance of the subject matter. Discuss key concepts, definitions, or historical background relevant to your study. This section should help the reader understand the broader context of your research paper.
  • State the research problem or gap : clearly define the specific problem or research gap your study aims to address. Explain why this problem is significant and deserving of investigation. This helps the reader understand the purpose and relevance of your research paper.
  • Present your research question or thesis statement : formulate a clear and concise research question, hypothesis, or thesis statement that serves as the central focus of your study. This statement should guide your research paper and articulate your introduction format.
  • Outline the structure of the paper : write a brief preview of your research paper’s main sections and organization. This helps the reader understand the flow of your paper and what to expect in each section. Provide a roadmap by mentioning the key points or arguments discussed in subsequent sections.

By following these steps, you can create an introduction that grabs the reader’s attention and sets the stage for the rest of your research paper, clearly understanding your study’s problem, purpose, and structure.

Writing a checklist for a proper college paper introduction

Here’s a short writing checklist for a research paper intro:

  • Attention-grabbing opening:
  • Does the research paper introduction example start with a compelling statement, relevant quote, surprising fact, or intriguing anecdote?
  • Is the opening engaging enough to capture readers’ attention and make them curious about the research paper?
  • Background information:
  • Have you provided a concise overview of the research topic, including relevant definitions, concepts, or historical context?
  • Does the background information help the reader understand the broader context and importance of the subject matter?
  • Clear problem statement:
  • Have you clearly stated the specific problem or research gap that your study aims to address?
  • Does a research introduction have a well-defined, strong, and significant problem statement?
  • Research question or thesis statement:
  • Have you presented a clear and concise research question, hypothesis, or thesis statement that guides your paper?
  • Does the research question or thesis statement align with the problem statement and set the direction for your research paper?
  • Structure and organization:
  • Did you write a brief overview of the structure and organization of the research paper?
  • Does the introduction outline the main sections or components covered in the paper?
  • Coherence and flow:
  • Is the intro logically organized? Does it have smooth transitions between ideas and paragraphs?
  • Does the intro flow smoothly from the opening to the problem statement, research question, and purpose?
  • Conciseness and clarity:
  • Have you kept the introduction concise, avoiding unnecessary details or tangents?
  • Is the language clear, avoiding jargon or overly technical terms that may confuse the reader?
  • Relevance and significance:
  • Have you clearly explained the relevance and significance of the research topic and the paper’s potential impact?
  • Does the introduction effectively communicate why your research is important and worth exploring?

This checklist will help you to review your research essay introduction to ensure it effectively grabs the reader’s attention, provides necessary background information, states the problem clearly, presents a focused research question or thesis statement, outlines the structure of the paper, and maintains coherence and clarity throughout.

Types of intro formats

Different academic disciplines may follow specific formatting styles for research introduction, such as MLA (Modern Language Association), APA (American Psychological Association), Chicago, ASA (American Sociological Association), and AMA (American Medical Association).

service-1

To write an introduction paragraph, you should understand the differences between the most common academic formats for your future paper.

MLA (Modern Language Association):

  • Primarily used in humanities, literature, and arts disciplines.
  • Features in-text citations using the author-page format (e.g., “Smith 45”).

APA (American Psychological Association):

  • Commonly used in social sciences, psychology, and education.
  • Utilizes in-text citations with the author-date format (e.g., “Smith, 2019”).
  • Often used in history, humanities, and some social sciences.
  • Offers two styles: the notes-bibliography system and the author-date system.
  • Includes a bibliography page to list all sources used.

ASA (American Sociological Association):

  • Primarily used in sociology and related social sciences.
  • Utilizes in-text citations with the author-date format (e.g., “Smith 2019”).

AMA (American Medical Association):

  • Commonly used in medical, health, and biological sciences.
  • Features in-text citations with a superscript number (e.g., “Smith^1”).
  • Emphasizes accuracy and consistency in citation style.

All formatting styles mean a set of rules and guidelines for citing sources, formatting headings, page layout, and referencing. It’s important to consult the specific style guide or manual associated with your field of study before you write.

These might include guidelines provided by your institution to ensure proper paper formatting and adherence of a research introduction to the chosen style.

Research introduction sample

Now that you know how the idea goes in the introduction of a research paper, let’s see the practical examples of good and bad introductions and discuss their differences.

Good example:

Title: “Exploring the Impact of Climate Change on Biodiversity: A Comprehensive Analysis”

Introduction:

Climate change is a pressing global issue that has far-reaching consequences for our planet. Its effects on various ecosystems, particularly biodiversity loss, have attracted significant attention from researchers and policymakers alike.

This research paper aims to provide a comprehensive analysis of the impact of climate change on biodiversity, focusing on key regions and species vulnerable to these changes. By examining the latest scientific literature, empirical studies, and expert opinions, we will explore the complex interplay between climate change and biodiversity loss, shed light on the underlying mechanisms, and propose potential mitigation strategies.

Understanding these dynamics is crucial for developing effective conservation strategies and promoting sustainable practices that will help preserve our planet’s invaluable natural heritage.

Bad example:

Title: “Climate Change and Biodiversity”

Climate change and biodiversity are two important topics that have received considerable attention recently. Climate change refers to the long-term alteration of temperature and precipitation patterns, while biodiversity encompasses the variety of life forms found on Earth.

In this research paper, we will discuss the impact of climate change on biodiversity and explore various examples and case studies. The paper will also highlight the significance of addressing this issue and present potential solutions.

By delving into this subject, we aim to contribute to the existing body of knowledge and raise awareness about the importance of protecting biodiversity in climate change.

To begin an introduction paragraph, don’t provide too much background or theory at once. Remember to arrange your thoughts concisely while keeping the important information for the paper body.

A good intro should answer the four basic questions:

  • What was I studying?
  • Why was this topic important to investigate?
  • What did we know about this topic before I did this study?
  • How will this study advance our knowledge?

Remember that you might not get a second chance to create a positive first impression. That’s why it’s equally important to keep your paper laconic and to end an introduction paragraph with a call to action to read your research paper.

aside icon

  • Writing a Research Paper
  • Research Paper Title
  • Research Paper Sources
  • Research Paper Problem Statement
  • Research Paper Thesis Statement
  • Hypothesis for a Research Paper
  • Research Question
  • Research Paper Outline
  • Research Paper Summary
  • Research Paper Prospectus
  • Research Paper Proposal
  • Research Paper Format
  • Research Paper Styles
  • AMA Style Research Paper
  • MLA Style Research Paper
  • Chicago Style Research Paper
  • APA Style Research Paper
  • Research Paper Structure
  • Research Paper Cover Page
  • Research Paper Abstract
  • Research Paper Introduction
  • Research Paper Body Paragraph
  • Research Paper Literature Review
  • Research Paper Background
  • Research Paper Methods Section
  • Research Paper Results Section
  • Research Paper Discussion Section
  • Research Paper Conclusion
  • Research Paper Appendix
  • Research Paper Bibliography
  • APA Reference Page
  • Annotated Bibliography
  • Bibliography vs Works Cited vs References Page
  • Research Paper Types
  • What is Qualitative Research

Receive paper in 3 Hours!

  • Choose the number of pages.
  • Select your deadline.
  • Complete your order.

Number of Pages

550 words (double spaced)

Deadline: 10 days left

By clicking "Log In", you agree to our terms of service and privacy policy . We'll occasionally send you account related and promo emails.

Sign Up for your FREE account

U.S. flag

An official website of the United States government

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

  • Publications
  • Account settings
  • My Bibliography
  • Collections
  • Citation manager

Save citation to file

Email citation, add to collections.

  • Create a new collection
  • Add to an existing collection

Add to My Bibliography

Your saved search, create a file for external citation management software, your rss feed.

  • Search in PubMed
  • Search in NLM Catalog
  • Add to Search

How to Write an Effective Introduction

Affiliations.

  • 1 Sydney Kimmel Medical College.
  • 2 Rothman Institute, Philadelphia, PA.
  • PMID: 30234565
  • DOI: 10.1097/BSD.0000000000000714

Ideally, the Introduction is an essential attention grabbing section of a research paper. If written correctly, the Introduction peaks the reader's interest as well as serves as a roadmap for the rest of the paper. An effective Introduction builds off related empirical research and demonstrates a gap in which the current study fills. Finally, the Introduction proposes the research question(s) which will be answered in subsequent sections of the paper. A strong Introduction also requires the use of a simple and well-organized format as well as the avoidance of common pitfalls.

PubMed Disclaimer

Similar articles

  • Scientific Medical Writing in Practice: the «IMR@D®» Format. Ben Saad H. Ben Saad H. Tunis Med. 2019 Mar;97(3):407-425. Tunis Med. 2019. PMID: 31729715
  • WASP (Write a Scientific Paper): Miscellaneous practical and material aspects. Grech V. Grech V. Early Hum Dev. 2019 Jan;128:105-106. doi: 10.1016/j.earlhumdev.2018.09.008. Epub 2018 Sep 18. Early Hum Dev. 2019. PMID: 30241901
  • How to write the methods section of a research paper. Kallet RH. Kallet RH. Respir Care. 2004 Oct;49(10):1229-32. Respir Care. 2004. PMID: 15447808
  • Eight questions to ask before writing an article. Albert T. Albert T. Br J Hosp Med (Lond). 2017 Jun 2;78(6):341-343. doi: 10.12968/hmed.2017.78.6.341. Br J Hosp Med (Lond). 2017. PMID: 28614016 Review.
  • Writing biomedical manuscripts part I: fundamentals and general rules. Ohwovoriole AE. Ohwovoriole AE. West Afr J Med. 2011 May-Jun;30(3):151-7. West Afr J Med. 2011. PMID: 22120477 Review.
  • Essential Guide to Manuscript Writing for Academic Dummies: An Editor's Perspective. Aga SS, Nissar S. Aga SS, et al. Biochem Res Int. 2022 Sep 1;2022:1492058. doi: 10.1155/2022/1492058. eCollection 2022. Biochem Res Int. 2022. PMID: 36092536 Free PMC article. Review.
  • Search in MeSH

LinkOut - more resources

Full text sources.

  • Ovid Technologies, Inc.
  • Wolters Kluwer

Other Literature Sources

  • scite Smart Citations

Miscellaneous

  • NCI CPTAC Assay Portal

full text provider logo

  • Citation Manager

NCBI Literature Resources

MeSH PMC Bookshelf Disclaimer

The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited.

U.S. flag

An official website of the United States government

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

  • Publications
  • Account settings

Preview improvements coming to the PMC website in October 2024. Learn More or Try it out now .

  • Advanced Search
  • Journal List
  • Turk J Urol
  • v.39(Suppl 1); 2013 Sep

How to write an introduction section of a scientific article?

An article primarily includes the following sections: introduction, materials and methods, results, discussion, and conclusion. Before writing the introduction, the main steps, the heading and the familiarity level of the readers should be considered. Writing should begin when the experimental system and the equipment are available. The introduction section comprises the first portion of the manuscript, and it should be written using the simple present tense. Additionally, abbreviations and explanations are included in this section. The main goal of the introduction is to convey basic information to the readers without obligating them to investigate previous publications and to provide clues as to the results of the present study. To do this, the subject of the article should be thoroughly reviewed, and the aim of the study should be clearly stated immediately after discussing the basic references. In this review, we aim to convey the principles of writing the introduction section of a manuscript to residents and young investigators who have just begun to write a manuscript.

Introduction

When entering a gate of a magnificent city we can make a prediction about the splendor, pomposity, history, and civilization we will encounter in the city. Occasionally, gates do not give even a glimpse of the city, and it can mislead the visitors about inner sections of the city. Introduction sections of the articles are like gates of a city. It is a presentation aiming at introducing itself to the readers, and attracting their attention. Attractiveness, clarity, piquancy, and analytical capacity of the presentation will urge the reader to read the subsequent sections of the article. On the other hand as is understood from the motto of antique Greek poet Euripides “a bad beginning makes a bad ending”, ‘Introduction’ section of a scientific article is important in that it can reveal the conclusion of the article. [ 1 ]

It is useful to analyze the issues to be considered in the ‘Introduction’ section under 3 headings. Firstly, information should be provided about the general topic of the article in the light of the current literature which paves the way for the disclosure of the objective of the manuscript. Then the specific subject matter, and the issue to be focused on should be dealt with, the problem should be brought forth, and fundamental references related to the topic should be discussed. Finally, our recommendations for solution should be described, in other words our aim should be communicated. When these steps are followed in that order, the reader can track the problem, and its solution from his/her own perspective under the light of current literature. Otherwise, even a perfect study presented in a non-systematized, confused design will lose the chance of reading. Indeed inadequate information, inability to clarify the problem, and sometimes concealing the solution will keep the reader who has a desire to attain new information away from reading the manuscript. [ 1 – 3 ]

First of all, explanation of the topic in the light of the current literature should be made in clear, and precise terms as if the reader is completely ignorant of the subject. In this section, establishment of a warm rapport between the reader, and the manuscript is aimed. Since frantic plunging into the problem or the solution will push the reader into the dilemma of either screening the literature about the subject matter or refraining from reading the article. Updated, and robust information should be presented in the ‘Introduction’ section.

Then main topic of our manuscript, and the encountered problem should be analyzed in the light of the current literature following a short instance of brain exercise. At this point the problems should be reduced to one issue as far as possible. Of course, there might be more than one problem, however this new issue, and its solution should be the subject matter of another article. Problems should be expressed clearly. If targets are more numerous, and complex, solutions will be more than one, and confusing.

Finally, the last paragraphs of the ‘Introduction’ section should include the solution in which we will describe the information we generated, and related data. Our sentences which arouse curiosity in the readers should not be left unanswered. The reader who thinks to obtain the most effective information in no time while reading a scientific article should not be smothered with mysterious sentences, and word plays, and the readers should not be left alone to arrive at a conclusion by themselves. If we have contrary expectations, then we might write an article which won’t have any reader. A clearly expressed or recommended solutions to an explicitly revealed problem is also very important for the integrity of the ‘Introduction’ section. [ 1 – 5 ]

We can summarize our arguments with the following example ( Figure 1 ). The introduction section of the exemplary article is written in simple present tense which includes abbreviations, acronyms, and their explanations. Based on our statements above we can divide the introduction section into 3 parts. In the first paragraph, miniaturization, and evolvement of pediatric endourological instruments, and competitions among PNL, ESWL, and URS in the treatment of urinary system stone disease are described, in other words the background is prepared. In the second paragraph, a newly defined system which facilitates intrarenal access in PNL procedure has been described. Besides basic references related to the subject matter have been given, and their outcomes have been indicated. In other words, fundamental references concerning main subject have been discussed. In the last paragraph the aim of the researchers to investigate the outcomes, and safety of the application of this new method in the light of current information has been indicated.

An external file that holds a picture, illustration, etc.
Object name is TJU-39-Supp-8-g01.jpg

An exemplary introduction section of an article

Apart from the abovementioned information about the introduction section of a scientific article we will summarize a few major issues in brief headings

Important points which one should take heed of:

  • Abbreviations should be given following their explanations in the ‘Introduction’ section (their explanations in the summary does not count)
  • Simple present tense should be used.
  • References should be selected from updated publication with a higher impact factor, and prestigous source books.
  • Avoid mysterious, and confounding expressions, construct clear sentences aiming at problematic issues, and their solutions.
  • The sentences should be attractive, tempting, and comjprehensible.
  • Firstly general, then subject-specific information should be given. Finally our aim should be clearly explained.

We Trust in Human Precision

20,000+ Professional Language Experts Ready to Help. Expertise in a variety of Niches.

API Solutions

  • API Pricing
  • Cost estimate
  • Customer loyalty program
  • Educational Discount
  • Non-Profit Discount
  • Green Initiative Discount1

Value-Driven Pricing

Unmatched expertise at affordable rates tailored for your needs. Our services empower you to boost your productivity.

PC editors choice

  • Special Discounts
  • Enterprise transcription solutions
  • Enterprise translation solutions
  • Transcription/Caption API
  • AI Transcription Proofreading API

Trusted by Global Leaders

GoTranscript is the chosen service for top media organizations, universities, and Fortune 50 companies.

GoTranscript

One of the Largest Online Transcription and Translation Agencies in the World. Founded in 2005.

Speaker 1: After the title page and abstract, the reader's first true interaction with your research paper is the introduction. Your introduction will establish the foundation upon which your readers approach your work, and if you use the tips we discuss in this video, these readers should be able to logically apply the rules set in your introduction to all parts of your paper, all the way through the conclusion. What exactly is the purpose of the introduction? Think about your paper as a chronological story. It will begin at point A, the introduction, and move in time towards point B, the discussion and conclusion. Since your introduction includes content about the gaps in knowledge that your study aims to fill, the results you elaborate on in your discussion section should therefore be somewhat familiar to the reader, as you have already touched upon them in the introduction section. The introduction must answer two main questions. Why was this particular study needed to fill the gaps in knowledge? And why does this particular gap need filling? Imagine our entire plane of knowledge as an incomplete puzzle. The pieces snapped together are what is established, or what is known. The missing piece is the gap in knowledge, or what is currently unknown. This is what your study will be helping to explain. So the context you provide in the introduction must first identify that there is a knowledge gap in what it is, it must explain why it needs to be filled, and then briefly summarize how this study intends to fill that gap and why. The introduction is one of the most compact parts of the research paper, since it is not very long but needs to essentially give a complete overview of the context in which your study is taking place, and your specific reasons for doing the study. Most tend to be around 10% of the total length of your paper. The introduction consists of background information about a topic being studied, the rationale for undertaking the study, or for filling the gap with this particular information, key references to preliminary work or closely related papers appearing elsewhere, a clarification of important terms, definitions, or abbreviations to be used in the paper, and a review of related studies in which you give a brief but incisive analysis of work that heavily concerns your study. It could be a very similar study or one that supports the findings of your new study. So how should you structure your introduction? As you can see in this figure, your introduction should start broadly and then narrow until it reaches your hypothesis. The first thing you want to do is state your area of research and then immediately show what is already known. This is also known as background information. Then move on to what is unknown, the problem or gap you want to resolve. Finally, you should discuss how you will resolve this problem using a clear hypothesis. In step one, you will show what is already known. Start with a strong statement that reflects your research subject area and ask questions or post statements to frame the problems your study explores. You can ask general questions here to guide your readers to the problem and show them what we already know. For instance, what do we know about breathing capability of bottlenose dolphins? Use keywords from your title, the exact language of your study that is, to zero in on the problem at hand and show the relevance of your work. Avoid stating background information that is too broad in nature. You don't need to state too many obvious facts that your readers would know. If you are writing about bottlenose dolphins, for instance, you probably don't need to explain to them that mammals breathe oxygen. At the beginning of the introduction, you should also be sure to cite all of the sources that you use for background information and support. Only provide the necessary background information. Don't focus extensively on background, but use it to set up the context for doing this study. You should also review only relevant, up-to-date primary literature that supports your explanation of our current base of knowledge. In the second part of your introduction, you should answer the question, what is the knowledge gap? Here you will highlight areas where too little information is available. Explain how and why we should fill in that gap. What does this missing information do to impede our understanding of a process or system? And you should identify what logical next steps can be developed based on existing research. By showing you have examined current data and devised a method to find new applications and make new inferences, you're showing your peers that you are aware of the direction your research is moving in, and you're showing confidence in your decision to pursue this paper study. In the last part of your introduction, you will show how your study fills in the knowledge gap. This is where you state your purpose and give a clear hypothesis or objective of the study. The hypothesis is a very short 1-2 sentence supposition or explanation of what will happen in your study. This is quite often written as an if-then format. If X and Y are present, then Z will occur. Here you should also try to answer the question, if we fill this gap, what useful information will the readers gain? Many researchers have difficulty when it comes to deciding when to write their introduction. It is important to consider the order you draft your research paper, for as you recall, everything else in the research paper must flow from the introduction. Therefore, because it is one of the most difficult sections to nail down, consider writing the introduction second to last, after the materials and methods, results, and discussion section, and just before the conclusion. This will ensure you effectively lay a groundwork for the rest of your paper, and you can use the research you have already compiled to ensure that everything in your introduction is pertinent and accurate. In addition to content and organization, writers of research papers should also be aware of grammar and style issues that directly affect the readability and strength of their printed work. Here are some guidelines for writing the introduction section. Try and write in the active voice when possible. This will shorten your sentences and enhance the impact of your information. Always strive for concise sentences. This will allow you to get in all of the necessary information in this compact introduction section. Use stronger verbs when possible. This also impacts sentence length and strength of writing. Be careful not to overuse first-person pronouns such as I and we, and always organize your thoughts from the broad to the specific, as we have seen in our model. A strong introduction will encourage readers to read your entire research paper and help get your work published in scientific journals. For more information and tips on manuscript writing and journal submissions, visit the resources page at wordvice.com.

techradar

Frequently asked questions

What should i include in a research paper introduction.

The introduction of a research paper includes several key elements:

  • A hook to catch the reader’s interest
  • Relevant background on the topic
  • Details of your research problem

and your problem statement

  • A thesis statement or research question
  • Sometimes an overview of the paper

Frequently asked questions: Writing a research paper

A research project is an academic, scientific, or professional undertaking to answer a research question . Research projects can take many forms, such as qualitative or quantitative , descriptive , longitudinal , experimental , or correlational . What kind of research approach you choose will depend on your topic.

The best way to remember the difference between a research plan and a research proposal is that they have fundamentally different audiences. A research plan helps you, the researcher, organize your thoughts. On the other hand, a dissertation proposal or research proposal aims to convince others (e.g., a supervisor, a funding body, or a dissertation committee) that your research topic is relevant and worthy of being conducted.

Formulating a main research question can be a difficult task. Overall, your question should contribute to solving the problem that you have defined in your problem statement .

However, it should also fulfill criteria in three main areas:

  • Researchability
  • Feasibility and specificity
  • Relevance and originality

Research questions anchor your whole project, so it’s important to spend some time refining them.

In general, they should be:

  • Focused and researchable
  • Answerable using credible sources
  • Complex and arguable
  • Feasible and specific
  • Relevant and original

All research questions should be:

  • Focused on a single problem or issue
  • Researchable using primary and/or secondary sources
  • Feasible to answer within the timeframe and practical constraints
  • Specific enough to answer thoroughly
  • Complex enough to develop the answer over the space of a paper or thesis
  • Relevant to your field of study and/or society more broadly

Writing Strong Research Questions

A research aim is a broad statement indicating the general purpose of your research project. It should appear in your introduction at the end of your problem statement , before your research objectives.

Research objectives are more specific than your research aim. They indicate the specific ways you’ll address the overarching aim.

Once you’ve decided on your research objectives , you need to explain them in your paper, at the end of your problem statement .

Keep your research objectives clear and concise, and use appropriate verbs to accurately convey the work that you will carry out for each one.

I will compare …

Your research objectives indicate how you’ll try to address your research problem and should be specific:

Research objectives describe what you intend your research project to accomplish.

They summarize the approach and purpose of the project and help to focus your research.

Your objectives should appear in the introduction of your research paper , at the end of your problem statement .

The main guidelines for formatting a paper in Chicago style are to:

  • Use a standard font like 12 pt Times New Roman
  • Use 1 inch margins or larger
  • Apply double line spacing
  • Indent every new paragraph ½ inch
  • Include a title page
  • Place page numbers in the top right or bottom center
  • Cite your sources with author-date citations or Chicago footnotes
  • Include a bibliography or reference list

To automatically generate accurate Chicago references, you can use Scribbr’s free Chicago reference generator .

The main guidelines for formatting a paper in MLA style are as follows:

  • Use an easily readable font like 12 pt Times New Roman
  • Set 1 inch page margins
  • Include a four-line MLA heading on the first page
  • Center the paper’s title
  • Use title case capitalization for headings
  • Cite your sources with MLA in-text citations
  • List all sources cited on a Works Cited page at the end

To format a paper in APA Style , follow these guidelines:

  • Use a standard font like 12 pt Times New Roman or 11 pt Arial
  • If submitting for publication, insert a running head on every page
  • Apply APA heading styles
  • Cite your sources with APA in-text citations
  • List all sources cited on a reference page at the end

No, it’s not appropriate to present new arguments or evidence in the conclusion . While you might be tempted to save a striking argument for last, research papers follow a more formal structure than this.

All your findings and arguments should be presented in the body of the text (more specifically in the results and discussion sections if you are following a scientific structure). The conclusion is meant to summarize and reflect on the evidence and arguments you have already presented, not introduce new ones.

The conclusion of a research paper has several key elements you should make sure to include:

  • A restatement of the research problem
  • A summary of your key arguments and/or findings
  • A short discussion of the implications of your research

Don’t feel that you have to write the introduction first. The introduction is often one of the last parts of the research paper you’ll write, along with the conclusion.

This is because it can be easier to introduce your paper once you’ve already written the body ; you may not have the clearest idea of your arguments until you’ve written them, and things can change during the writing process .

The way you present your research problem in your introduction varies depending on the nature of your research paper . A research paper that presents a sustained argument will usually encapsulate this argument in a thesis statement .

A research paper designed to present the results of empirical research tends to present a research question that it seeks to answer. It may also include a hypothesis —a prediction that will be confirmed or disproved by your research.

Ask our team

Want to contact us directly? No problem.  We  are always here for you.

Support team - Nina

Our team helps students graduate by offering:

  • A world-class citation generator
  • Plagiarism Checker software powered by Turnitin
  • Innovative Citation Checker software
  • Professional proofreading services
  • Over 300 helpful articles about academic writing, citing sources, plagiarism, and more

Scribbr specializes in editing study-related documents . We proofread:

  • PhD dissertations
  • Research proposals
  • Personal statements
  • Admission essays
  • Motivation letters
  • Reflection papers
  • Journal articles
  • Capstone projects

Scribbr’s Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker , namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases .

The add-on AI detector is powered by Scribbr’s proprietary software.

The Scribbr Citation Generator is developed using the open-source Citation Style Language (CSL) project and Frank Bennett’s citeproc-js . It’s the same technology used by dozens of other popular citation tools, including Mendeley and Zotero.

You can find all the citation styles and locales used in the Scribbr Citation Generator in our publicly accessible repository on Github .

Information

  • Author Services

Initiatives

You are accessing a machine-readable page. In order to be human-readable, please install an RSS reader.

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess .

Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.

Feature papers are submitted upon individual invitation or recommendation by the scientific editors and must receive positive feedback from the reviewers.

Editor’s Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers, or important in the respective research area. The aim is to provide a snapshot of some of the most exciting work published in the various research areas of the journal.

Original Submission Date Received: .

  • Active Journals
  • Find a Journal
  • Proceedings Series
  • For Authors
  • For Reviewers
  • For Editors
  • For Librarians
  • For Publishers
  • For Societies
  • For Conference Organizers
  • Open Access Policy
  • Institutional Open Access Program
  • Special Issues Guidelines
  • Editorial Process
  • Research and Publication Ethics
  • Article Processing Charges
  • Testimonials
  • Preprints.org
  • SciProfiles
  • Encyclopedia

membranes-logo

Article Menu

good introductions for a research paper

  • Subscribe SciFeed
  • Recommended Articles
  • Author Biographies
  • Google Scholar
  • on Google Scholar
  • Table of Contents

Find support for a specific problem in the support section of our website.

Please let us know what you think of our products and services.

Visit our dedicated information section to learn more about MDPI.

JSmol Viewer

Research on reverse osmosis (ro)/nanofiltration (nf) membranes based on thin film composite (tfc) structures: mechanism, recent progress and application.

good introductions for a research paper

1. Introduction

2. mechanism of pa layer formation, 3. modification methods and latest research progress, 3.1. application of new monomers, 3.2. modification of two-phase solution, 3.3. new modification methods, 4. application, 4.1. applications in different fields, 4.1.1. treatment of industrial wastewater, 4.1.2. desalination, 4.1.3. micropollutant, 4.1.4. resource recovery, 4.2. membranes module, 4.3. membrane fouling and damage, 4.3.1. membrane fouling, 4.3.2. membranes damage, 5. conclusions, author contributions, institutional review board statement, informed consent statement, conflicts of interest.

  • Lu, D.; Yao, Z.; Jiao, L.; Waheed, M.; Sun, Z.; Zhang, L. Separation mechanism, selectivity enhancement strategies and advanced materials for mono-/multivalent ion-selective nanofiltration membrane. Adv. Membr. 2022 , 2 , 100032. [ Google Scholar ] [ CrossRef ]
  • Lee, J.; Jang, J.H.; Chae, H.-R.; Lee, S.H.; Lee, C.-H.; Park, P.-K.; Won, Y.-J.; Kim, I.-C. A facile route to enhance the water flux of a thin-film composite reverse osmosis membrane: Incorporating thickness-controlled graphene oxide into a highly porous support layer. J. Mater. Chem. A 2015 , 3 , 22053–22060. [ Google Scholar ] [ CrossRef ]
  • Lau, W.; Ismail, A.; Misdan, N.; Kassim, M. A recent progress in thin film composite membrane: A review. Desalination 2012 , 287 , 190–199. [ Google Scholar ] [ CrossRef ]
  • Yang, Z.; Sun, P.-F.; Li, X.; Gan, B.; Wang, L.; Song, X.; Park, H.-D.; Tang, C.Y. A Critical Review on Thin-Film Nanocomposite Membranes with Interlayered Structure: Mechanisms, Recent Developments, and Environmental Applications. Environ. Sci. Technol. 2020 , 54 , 15563–15583. [ Google Scholar ] [ CrossRef ]
  • Yadav, D.; Karki, S.; Ingole, P.G. Current advances and opportunities in the development of nanofiltration (NF) membranes in the area of wastewater treatment, water desalination, biotechnological and pharmaceutical applications. J. Environ. Chem. Eng. 2022 , 10 , 108109. [ Google Scholar ] [ CrossRef ]
  • Zhao, Y.; Tong, T.; Wang, X.; Lin, S.; Reid, E.M.; Chen, Y. Differentiating Solutes with Precise Nanofiltration for Next Generation Environmental Separations: A Review. Environ. Sci. Technol. 2021 , 55 , 1359–1376. [ Google Scholar ] [ CrossRef ]
  • Farahbakhsh, J.; Vatanpour, V.; Khoshnam, M.; Zargar, M. Recent advancements in the application of new monomers and membrane modification techniques for the fabrication of thin film composite membranes: A review. React. Funct. Polym. 2021 , 166 , 105015. [ Google Scholar ] [ CrossRef ]
  • Lim, Y.J.; Goh, K.; Lai, G.S.; Zhao, Y.; Torres, J.; Wang, R. Unraveling the role of support membrane chemistry and pore properties on the formation of thin-film composite polyamide membranes. J. Membr. Sci. 2021 , 640 , 119805. [ Google Scholar ] [ CrossRef ]
  • Shi, M.; Wang, Z.; Zhao, S.; Wang, J.; Wang, S. A support surface pore structure re-construction method to enhance the flux of TFC RO membrane. J. Membr. Sci. 2017 , 541 , 39–52. [ Google Scholar ] [ CrossRef ]
  • Peng, L.E.; Yao, Z.; Yang, Z.; Guo, H.; Tang, C.Y. Dissecting the Role of Substrate on the Morphology and Separation Properties of Thin Film Composite Polyamide Membranes: Seeing Is Believing. Environ. Sci. Technol. 2020 , 54 , 6978–6986. [ Google Scholar ] [ CrossRef ]
  • Matthews, T.D.; Yan, H.; Cahill, D.G.; Coronell, O.; Mariñas, B.J. Growth dynamics of interfacially polymerized polyamide layers by diffuse reflectance spectroscopy and Rutherford backscattering spectrometry. J. Membr. Sci. 2013 , 429 , 71–80. [ Google Scholar ] [ CrossRef ]
  • Lin, L.; Lopez, R.; Ramon, G.Z.; Coronell, O. Investigating the void structure of the polyamide active layers of thin-film composite membranes. J. Membr. Sci. 2016 , 497 , 365–376. [ Google Scholar ] [ CrossRef ]
  • Li, X.; Wang, Z.; Han, X.; Liu, Y.; Wang, C.; Yan, F.; Wang, J. Regulating the interfacial polymerization process toward high-performance polyamide thin-film composite reverse osmosis and nanofiltration membranes: A review. J. Membr. Sci. 2021 , 640 , 119765. [ Google Scholar ] [ CrossRef ]
  • Wu, S.; Wang, F.; Zhou, S.; Long, L.; Yang, Z.; Tang, C.Y. Vacuum-assisted MPD loading toward promoted nanoscale structure and enhanced water permeance of polyamide RO membrane. Sep. Purif. Technol. 2022 , 297 , 121547. [ Google Scholar ] [ CrossRef ]
  • Seah, M.Q.; Lau, W.J.; Goh, P.S.; Ismail, A.F. Greener synthesis of functionalized-GO incorporated TFN NF membrane for potential recovery of saline water from salt/dye mixed solution. Desalination 2022 , 523 , 115403. [ Google Scholar ] [ CrossRef ]
  • Chen, B.; Yu, S.; Zhao, X. The influence of RO membrane surface properties on surfactant fouling in radioactive wastewater treatment. Process Saf. Environ. Prot. 2021 , 149 , 858–865. [ Google Scholar ] [ CrossRef ]
  • Yu, T.; Zhao, Y.; Sun, S.; Yong, N.G.H.; Li, P.; Wang, L.; Bi, X.; Shi, X.; Chen, D. Low feed water temperature effects on RO membrane fouling development for municipal wastewater reclamation. J. Water Process Eng. 2022 , 49 , 103093. [ Google Scholar ] [ CrossRef ]
  • Hirose, M. The relationship between polymer molecular structure of RO membrane skin layers and their RO performances. J. Membr. Sci. 1997 , 123 , 151–156. [ Google Scholar ] [ CrossRef ]
  • Peng, L.E.; Yao, Z.; Liu, X.; Deng, B.; Guo, H.; Tang, C.Y. Tailoring Polyamide Rejection Layer with Aqueous Carbonate Chemistry for Enhanced Membrane Separation: Mechanistic Insights, Chemistry-Structure-Property Relationship, and Environmental Implications. Environ. Sci. Technol. 2019 , 53 , 9764–9770. [ Google Scholar ] [ CrossRef ]
  • Ma, X.; Yang, Z.; Yao, Z.; Guo, H.; Xu, Z.; Tang, C.Y. Tuning roughness features of thin film composite polyamide membranes for simultaneously enhanced permeability, selectivity and anti-fouling performance. J. Colloid. Interface Sci. 2019 , 540 , 382–388. [ Google Scholar ] [ CrossRef ]
  • Peng, L.E.; Jiang, Y.; Wen, L.; Guo, H.; Yang, Z.; Tang, C.Y. Does interfacial vaporization of organic solvent affect the structure and separation properties of polyamide RO membranes? J. Membr. Sci. 2021 , 625 , 119173. [ Google Scholar ] [ CrossRef ]
  • Peng, L.E.; Yang, Z.; Long, L.; Zhou, S.; Guo, H.; Tang, C.Y. A critical review on porous substrates of TFC polyamide membranes: Mechanisms, membrane performances, and future perspectives. J. Membr. Sci. 2022 , 641 , 119871. [ Google Scholar ] [ CrossRef ]
  • Song, X.; Gan, B.; Qi, S.; Guo, H.; Tang, C.Y.; Zhou, Y.; Gao, C. Intrinsic Nanoscale Structure of Thin Film Composite Polyamide Membranes: Connectivity, Defects, and Structure–Property Correlation, Environ. Sci. Technol. 2020 , 54 , 3559–3569. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Li, L.-Q.; Tang, Y.-J.; Xu, Z.-L. Can the NF membrane directly obtained by the interfacial polymerization of MPD and TMC? J. Membr. Sci. 2022 , 656 , 120618. [ Google Scholar ] [ CrossRef ]
  • Liang, Y.; Zhu, Y.; Liu, C.; Lee, K.-R.; Hung, W.-S.; Wang, Z.; Li, Y.; Elimelech, M.; Jin, J.; Lin, S. Polyamide nanofiltration membrane with highly uniform sub-nanometre pores for sub-1 Å precision separation. Nat. Commun. 2020 , 11 , 2015. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Grzebyk, K.; Armstrong, M.D.; Coronell, O. Accessing greater thickness and new morphology features in polyamide active layers of thin-film composite membranes by reducing restrictions in amine monomer supply. J. Membr. Sci. 2021 , 644 , 120112. [ Google Scholar ] [ CrossRef ]
  • Singh, P.S.; Ray, P.; Xie, Z.; Hoang, M. Synchrotron SAXS to probe cross-linked network of polyamide ‘reverse osmosis’ and ‘nanofiltration’ membranes. J. Membr. Sci. 2012 , 421–422 , 51–59. [ Google Scholar ] [ CrossRef ]
  • Mansouri, J.; Huang, S.; Agostino, A.; Kuchel, R.P.; Leslie, G.; Tang, C.Y.; Fane, A.G. Kinetics of support-free interfacial polymerization polyamide films by in-situ absorbance spectroscopy. Desalination 2023 , 549 , 116349. [ Google Scholar ] [ CrossRef ]
  • Nowbahar, A.; Mansard, V.; Mecca, J.M.; Paul, M.; Arrowood, T.; Squires, T.M. Measuring Interfacial Polymerization Kinetics Using Microfluidic Interferometry. J. Am. Chem. Soc. 2018 , 140 , 3173–3176. [ Google Scholar ] [ CrossRef ]
  • Dennison, J.M.; Xie, X.; Murphy, C.J.; Cahill, D.G. Density; Constants, E. and Thermal Conductivity of Interfacially Polymerized Polyamide Films for Reverse Osmosis Membranes. ACS Appl. Nano Mater. 2018 , 1 , 5008–5018. [ Google Scholar ] [ CrossRef ]
  • Abdikheibari, S.; Lei, W.; Dumée, L.F.; Barlow, A.J.; Baskaran, K. Novel thin film nanocomposite membranes decorated with few-layered boron nitride nanosheets for simultaneously enhanced water flux and organic fouling resistance. Appl. Surf. Sci. 2019 , 488 , 565–577. [ Google Scholar ] [ CrossRef ]
  • Khorshidi, B.; Thundat, T.; Fleck, B.A.; Sadrzadeh, M. A Novel Approach Toward Fabrication of High Performance Thin Film Composite Polyamide Membranes. Sci. Rep. 2016 , 6 , 22069. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Zhou, C.; Shi, Y.; Sun, C.; Yu, S.; Liu, M.; Gao, C. Thin-film composite membranes formed by interfacial polymerization with natural material sericin and trimesoyl chloride for nanofiltration. J. Membr. Sci. 2014 , 471 , 381–391. [ Google Scholar ] [ CrossRef ]
  • Wang, J.; Xu, R.; Yang, F.; Kang, J.; Cao, Y.; Xiang, M. Probing influences of support layer on the morphology of polyamide selective layer of thin film composite membrane. J. Membr. Sci. 2018 , 556 , 374–383. [ Google Scholar ] [ CrossRef ]
  • Chen, Y.; Niu, Q.J.; Hou, Y.; Sun, H. Effect of interfacial polymerization monomer design on the performance and structure of thin film composite nanofiltration and reverse osmosis membranes: A review. Sep. Purif. Technol. 2024 , 330 , 125282. [ Google Scholar ] [ CrossRef ]
  • Zhang, Y.; Wan, Y.; Li, Y.; Pan, G.; Yu, H.; Du, W.; Shi, H.; Wu, C.; Liu, Y. Thin-film composite nanofiltration membrane based on polyurea for extreme pH condition. J. Membr. Sci. 2021 , 635 , 119472. [ Google Scholar ] [ CrossRef ]
  • Xu, J.; Yan, H.; Zhang, Y.; Pan, G.; Liu, Y. The morphology of fully-aromatic polyamide separation layer and its relationship with separation performance of TFC membranes. J. Membr. Sci. 2017 , 541 , 174–188. [ Google Scholar ] [ CrossRef ]
  • Xu, S.-J.; Shen, Q.; Luo, L.-H.; Tong, Y.-H.; Wu, Y.-Z.; Xu, Z.-L.; Zhang, H.-Z. Surfactants attached thin film composite (TFC) nanofiltration (NF) membrane via intermolecular interaction for heavy metals removal. J. Membr. Sci. 2022 , 642 , 119930. [ Google Scholar ] [ CrossRef ]
  • Yuan, B.; Zhao, S.; Xu, S.; Wang, N.; Hu, P.; Chen, K.; Jiang, J.; Cui, J.; Zhang, X.; You, M.; et al. Aliphatic polyamide nanofilm with ordered nanostripe, synergistic pore size and charge density for the enhancement of cation sieving. J. Membr. Sci. 2022 , 660 , 120839. [ Google Scholar ] [ CrossRef ]
  • Zeng, Y.; Wang, L.; Zhang, L.; Yu, J.Q. An acid resistant nanofiltration membrane prepared from a precursor of poly(s-triazine-amine) by interfacial polymerization. J. Membr. Sci. 2018 , 546 , 225–233. [ Google Scholar ] [ CrossRef ]
  • Yong, Z.; Sanchuan, Y.; Meihong, L.; Congjie, G. Polyamide thin film composite membrane prepared from m-phenylenediamine and m-phenylenediamine-5-sulfonic acid. J. Membr. Sci. 2006 , 270 , 162–168. [ Google Scholar ] [ CrossRef ]
  • Buch, P.R.; Mohan, D.J.; Reddy, A.V.R. Preparation, characterization and chlorine stability of aromatic–cycloaliphatic polyamide thin film composite membranes. J. Membr. Sci. 2008 , 309 , 36–44. [ Google Scholar ] [ CrossRef ]
  • Jiang, Z.; Dong, R.; Evans, A.M.; Biere, N.; Ebrahim, M.A.; Li, S.; Anselmetti, D.; Dichtel, W.R.; Livingston, A.G. Aligned macrocycle pores in ultrathin films for accurate molecular sieving. Nature 2022 , 609 , 58–64. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Liu, L.; Yu, S.; Zhou, Y.; Gao, C. Study on a novel polyamide-urea reverse osmosis composite membrane (ICIC–MPD) I. Preparation and characterization of ICIC–MPD membrane. J. Membr. Sci. 2006 , 281 , 88–94. [ Google Scholar ] [ CrossRef ]
  • Zhou, Y.; Yu, S.; Liu, M.; Gao, C. Preparation and characterization of polyamide-urethane thin-film composite membranes. Desalination 2005 , 180 , 189–196. [ Google Scholar ] [ CrossRef ]
  • Li, L.; Zhang, S.; Zhang, X.; Zheng, G. Polyamide thin film composite membranes prepared from 3,4′,5-biphenyl triacyl chloride, 3,3′,5,5′-biphenyl tetraacyl chloride and m-phenylenediamine. J. Membr. Sci. 2007 , 289 , 258–267. [ Google Scholar ] [ CrossRef ]
  • Zhao, Y.; Zhang, Z.; Dai, L.; Mao, H.; Zhang, S. Enhanced both water flux and salt rejection of reverse osmosis membrane through combining isophthaloyl dichloride with biphenyl tetraacyl chloride as organic phase monomer for seawater desalination. J. Membr. Sci. 2017 , 522 , 175–182. [ Google Scholar ] [ CrossRef ]
  • Wu, X.; Chen, T.; Dong, G.; Tian, M.; Wang, J.; Zhang, R.; Zhang, G.; Zhu, J.; Zhang, Y. A critical review on polyamide and polyesteramide nanofiltration membranes: Emerging monomeric structures and interfacial polymerization strategies. Desalination 2024 , 577 , 117379. [ Google Scholar ] [ CrossRef ]
  • Jimenez-Solomon, M.F.; Song, Q.; Jelfs, K.E.; Munoz-Ibanez, M.; Livingston, A.G. Polymer nanofilms with enhanced microporosity by interfacial polymerization. Nat. Mater. 2016 , 15 , 760–767. [ Google Scholar ] [ CrossRef ]
  • Duong, P.H.H.; Anjum, D.H.; Peinemann, K.-V.; Nunes, S.P. Thin porphyrin composite membranes with enhanced organic solvent transport. J. Membr. Sci. 2018 , 563 , 684–693. [ Google Scholar ] [ CrossRef ]
  • Villalobos, L.F.; Huang, T.; Peinemann, K. Cyclodextrin Films with Fast Solvent Transport and Shape-Selective Permeability. Adv. Mater. 2017 , 29 , 1606641. [ Google Scholar ] [ CrossRef ]
  • Jiang, C.; Tian, L.; Hou, Y.; Niu, Q.J. Nanofiltration membranes with enhanced microporosity and inner-pore interconnectivity for water treatment: Excellent balance between permeability and selectivity. J. Membr. Sci. 2019 , 586 , 192–201. [ Google Scholar ] [ CrossRef ]
  • Ali, Z.; Ghanem, B.S.; Wang, Y.; Pacheco, F.; Ogieglo, W.; Vovusha, H.; Genduso, G.; Schwingenschlögl, U.; Han, Y.; Pinnau, I. Finely Tuned Submicroporous Thin-Film Molecular Sieve Membranes for Highly Efficient Fluid Separations. Adv. Mater. 2020 , 32 , 2001132. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Gorgojo, P.; Karan, S.; Wong, H.C.; Jimenez-Solomon, M.F.; Cabral, J.T.; Livingston, A.G. Ultrathin Polymer Films with Intrinsic Microporosity: Anomalous Solvent Permeation and High Flux Membranes. Adv. Funct. Mater. 2014 , 24 , 4729–4737. [ Google Scholar ] [ CrossRef ]
  • Zhao, Y.; Li, N.; Shi, J.; Xia, Y.; Zhu, B.; Shao, R.; Min, C.; Xu, Z.; Deng, H. Extra-thin composite nanofiltration membranes tuned by γ-cyclodextrins containing amphipathic cavities for efficient separation of magnesium/lithium ions. Sep. Purif. Technol. 2022 , 286 , 120419. [ Google Scholar ] [ CrossRef ]
  • Wang, Z.; Liang, S.; Jin, Y.; Zhao, L.; Hu, L. Controlling structure and properties of polyamide nanofilms by varying amines diffusivity in organic phase. J. Membr. Sci. 2019 , 574 , 1–9. [ Google Scholar ] [ CrossRef ]
  • Morgan, P.W.; Kwolek, S.L. Interfacial polycondensation. II. Fundamentals of polymer formation at liquid interfaces. J. Polym. Sci. A Polym. Chem. 1996 , 34 , 531–559. [ Google Scholar ] [ CrossRef ]
  • Li, Y.; Chen, J.; Cai, P.; Wen, Z. Fast Water Transport Through Sub-5 nm Polyamide Nanofilms: The New Upper-Bound of the Permeance-Selectivity Trade-Off in Nanofiltration. J. Mater. Chem. A 2018 , 6 , 4948–4954. [ Google Scholar ] [ CrossRef ]
  • Ma, Z.-Y.; Liu, C.; Xue, Y.-R.; Zhu, C.-Y.; Wu, J.; Xu, Z.-K. Demystifying viscous isoalkanes as the organic solvent in interfacial polymerization for manufacturing desalination membranes. Desalination 2023 , 545 , 116166. [ Google Scholar ] [ CrossRef ]
  • Park, S.; Kwon, S.J.; Kwon, H.; Shin, M.; Park, S.; Park, H.; Park, Y.; Nam, S.; Lee, J.-H. Aromatic solvent-assisted interfacial polymerization to prepare high performance thin film composite reverse osmosis membranes based on hydrophilic supports. Polymer 2018 , 144 , 159–167. [ Google Scholar ] [ CrossRef ]
  • Yan, W.; Wang, Z.; Zhao, S.; Wang, J.; Zhang, P.; Cao, X. Combining co-solvent-optimized interfacial polymerization and protective coating-controlled chlorination for highly permeable reverse osmosis membranes with high rejection. J. Membr. Sci. 2019 , 572 , 61–72. [ Google Scholar ] [ CrossRef ]
  • Lee, J.; Wang, R.; Bae, T.-H. A comprehensive understanding of co-solvent effects on interfacial polymerization: Interaction with trimesoyl chloride. J. Membr. Sci. 2019 , 583 , 70–80. [ Google Scholar ] [ CrossRef ]
  • Kwak, S.-Y.; Jung, S.G.; Kim, S.H. Structure-Motion-Performance Relationship of Flux-Enhanced Reverse Osmosis (RO) Membranes Composed of Aromatic Polyamide Thin Films. Environ. Sci. Technol. 2001 , 35 , 4334–4340. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • You, M.; Wang, B.; An, L.; Xu, F.; Cao, Z.; Meng, J. Different roles of aqueous and organic additives in the morphology and performance of polyamide thin-film composite membranes. Chem. Eng. Res. Des. 2021 , 165 , 1–11. [ Google Scholar ] [ CrossRef ]
  • Li, C.; Zhao, Y.; Lai, G.S.; Wang, R. Investigation of aqueous and organic co-solvents roles in fabricating seawater reverse osmosis membrane. J. Membr. Sci. 2022 , 645 , 120187. [ Google Scholar ] [ CrossRef ]
  • Khorshidi, B.; Soltannia, B.; Thundat, T.; Sadrzadeh, M. Synthesis of thin film composite polyamide membranes: Effect of monohydric and polyhydric alcohol additives in aqueous solution. J. Membr. Sci. 2017 , 523 , 336–345. [ Google Scholar ] [ CrossRef ]
  • Kamada, T.; Kamada, T.; Ohara, T.; Shintani, T.; Tsuru, T. Controlled surface morphology of polyamide membranes via the addition of co-solvent for improved permeate flux. J. Membr. Sci. 2014 , 467 , 303–312. [ Google Scholar ] [ CrossRef ]
  • Li, W.-L.; Fu, P.; Lin, W.-T.; Zhang, Z.-L.; Luo, X.-W.; Yu, Y.-H.; Xu, Z.-K.; Wan, L.-S. High-performance thin-film composite (TFC) membranes with. Results Eng. 2024 , 21 , 101932. [ Google Scholar ] [ CrossRef ]
  • Al-Hobaib, A.S.; AL-Sheetan, K.M.; Shaik, M.R.; Al-Andis, N.M.; Al-Suhybani, M.S. Characterization and Evaluation of Reverse Osmosis Membranes Modified with Ag2O Nanoparticles to Improve Performance. Nanoscale Res. Lett. 2015 , 10 , 379. [ Google Scholar ] [ CrossRef ]
  • Ji, C.; Xue, S.; Tang, Y.-J.; Ma, X.-H.; Xu, Z.-L. Polyamide Membranes with Net-Like Nanostructures Induced by Different Charged MOFs for Elevated Nanofiltration. ACS Appl. Polym. Mater. 2020 , 2 , 585–593. [ Google Scholar ] [ CrossRef ]
  • Lim, Y.J.; Goh, K.; Wang, R. The coming of age of water channels for separation membranes: From biological to biomimetic to synthetic. Chem. Soc. Rev. 2022 , 51 , 4537–4582. [ Google Scholar ] [ CrossRef ]
  • Shen, J. Artificial channels for confined mass transport at the sub-nanometre scale. Nat. Rev. Mater. 2021 , 6 , 294–312. [ Google Scholar ] [ CrossRef ]
  • Shao, W.; Liu, C.; Ma, H.; Hong, Z.; Xie, Q.; Lu, Y. Fabrication of pH-sensitive thin-film nanocomposite nanofiltration membranes with enhanced performance by incorporating amine-functionalized graphene oxide. Appl. Surf. Sci. 2019 , 487 , 1209–1221. [ Google Scholar ] [ CrossRef ]
  • Nair, R.R.; Wu, H.A.; Jayaram, P.N.; Grigorieva, I.V.; Geim, A.K. Unimpeded Permeation of Water through Helium-Leak–Tight Graphene-Based Membranes. Science 2012 , 335 , 442–444. [ Google Scholar ] [ CrossRef ]
  • Liu, Y.; Yan, W.; Wang, Z.; Wang, H.; Zhao, S.; Wang, J.; Zhang, P.; Cao, X. 1-methylimidazole as a novel additive for reverse osmosis membrane with high flux-rejection combinations and good stability. J. Membr. Sci. 2020 , 599 , 117830. [ Google Scholar ] [ CrossRef ]
  • Tsuru, T.; Sasaki, S.; Kamada, T.; Shintani, T.; Ohara, T.; Nagasawa, H.; Nishida, K.; Kanezashi, M.; Yoshioka, T. Multilayered polyamide membranes by spray-assisted 2-step interfacial polymerization for increased performance of trimesoyl chloride (TMC)/m-phenylenediamine (MPD)-derived polyamide membranes. J. Membr. Sci. 2013 , 446 , 504–512. [ Google Scholar ] [ CrossRef ]
  • Yang, S.; Wang, J.; Wang, Y.; Ding, Y.; Zhang, W.; Liu, F. Interfacial polymerized polyamide nanofiltration membrane by demulsification of hexane-in-water droplets through hydrophobic PTFE membrane: Membrane performance and formation mechanism. Sep. Purif. Technol. 2021 , 275 , 119227. [ Google Scholar ] [ CrossRef ]
  • Dai, R.; Yang, Z.; Qiu, Z.; Long, L.; Tang, C.Y.; Wang, Z. Distinct impact of substrate hydrophilicity on performance and structure of TFC NF and RO polyamide membranes. J. Membr. Sci. 2022 , 662 , 120966. [ Google Scholar ] [ CrossRef ]
  • Chen, Y.; Sun, H.; Tang, S.; Feng, H.; Zhang, H.; Chen, K.; Li, P.; Niu, Q.J. Nanofiltration membranes with enhanced performance by constructing an interlayer integrated with dextran nanoparticles and polyethyleneimine coating. J. Membr. Sci. 2022 , 654 , 120537. [ Google Scholar ] [ CrossRef ]
  • Wen, Y.; Zhang, X.; Li, X.; Wang, Z.; Tang, C.Y. Metal–Organic Framework Nanosheets for Thin-Film Composite Membranes with Enhanced Permeability and Selectivity. ACS Appl. Nano Mater. 2020 , 3 , 9238–9248. [ Google Scholar ] [ CrossRef ]
  • Chen, K. A gelatin-zirconium phosphate nanoparticles composite interlayer for enhancing compaction resistance and antifouling performance of TFC NF membrane. J. Membr. Sci. 2024 , 698 , 122567. [ Google Scholar ] [ CrossRef ]
  • Zuo, X.; Chang, K.; Zhao, J.; Xie, Z.; Tang, H.; Li, B.; Chang, Z. Bubble-template-assisted synthesis of hollow fullerene-like MoS 2 nanocages as a lithium ion battery anode material. J. Mater. Chem. A 2016 , 4 , 51–58. [ Google Scholar ] [ CrossRef ]
  • Song, X.; Gan, B.; Yang, Z.; Tang, C.Y.; Gao, C. Confined nanobubbles shape the surface roughness structures of thin film composite polyamide desalination membranes. J. Membr. Sci. 2019 , 582 , 342–349. [ Google Scholar ] [ CrossRef ]
  • Jiang, Z.; Karan, S.; Livingston, A.G. Water Transport through Ultrathin Polyamide Nanofilms Used for Reverse Osmosis. Adv. Mater. 2018 , 30 , 1705973. [ Google Scholar ] [ CrossRef ]
  • Cui, Y.; Liu, X.-Y.; Chung, T.-S. Ultrathin Polyamide Membranes Fabricated from Free-Standing Interfacial Polymerization: Synthesis, Modifications, and Post-treatment. Ind. Eng. Chem. Res. 2017 , 56 , 513–523. [ Google Scholar ] [ CrossRef ]
  • Park, S.-J.; Choi, W.; Nam, S.-E.; Hong, S.; Lee, J.S.; Lee, J.-H. Fabrication of polyamide thin film composite reverse osmosis membranes via support-free interfacial polymerization. J. Membr. Sci. 2017 , 526 , 52–59. [ Google Scholar ] [ CrossRef ]
  • Shui, X.; Li, J.; Zhang, M.; Fang, C.; Zhu, L. Tailoring ultrathin microporous polyamide films with rapid solvent transport by molecular layer-by-layer deposition. J. Membr. Sci. 2021 , 628 , 119249. [ Google Scholar ] [ CrossRef ]
  • Gu, J.; Lee, S.; Stafford, C.M.; Lee, J.S.; Choi, W.; Kim, B.; Baek, K.; Chan, E.P.; Chung, J.Y.; Bang, J.; et al. Molecular Layer-by-Layer Assembled Thin-Film Composite Membranes for Water Desalination. Adv. Mater. 2013 , 25 , 4778–4782. [ Google Scholar ] [ CrossRef ]
  • Mazumder, A.; Sarkar, S.; Sen, D.; Bhattacharjee, C. 1-Membranes for industrial wastewater recovery and reuse. In Resource Recovery in Industrial Waste Waters ; Elsevier: Amsterdam, The Netherlands, 2023; pp. 1–21. [ Google Scholar ]
  • Quist-Jensen, C.A.; Macedonio, F.; Drioli, E. Membrane technology for water production in agriculture: Desalination and wastewater reuse. Desalination 2015 , 364 , 17–32. [ Google Scholar ] [ CrossRef ]
  • Al Aani, S.; Mustafa, T.N.; Hilal, N. Ultrafiltration membranes for wastewater and water process engineering: A comprehensive statistical review over the past decade. J. Water Process Eng. 2020 , 35 , 101241. [ Google Scholar ] [ CrossRef ]
  • Mohammad, A.W.; Ng, C.Y.; Lim, Y.P.; Ng, G.H. Ultrafiltration in Food Processing Industry: Review on Application, Membrane Fouling, and Fouling Control. Food Bioprocess. Technol. 2012 , 5 , 1143–1156. [ Google Scholar ] [ CrossRef ]
  • Razali, N.F.; Mohammad, A.W.; Hilal, N. Effects of polyaniline nanoparticles in polyethersulfone ultrafiltration membranes: Fouling behaviours by different types of foulant. J. Ind. Eng. Chem. 2014 , 20 , 3134–3140. [ Google Scholar ] [ CrossRef ]
  • Zheng, X.; Wen, J.; Shi, L.; Cheng, R.; Zhang, Z. A top-down approach to estimate global RO desalination water production considering uncertainty. Desalination 2020 , 488 , 114523. [ Google Scholar ] [ CrossRef ]
  • Macedonio, F.; Drioli, E. Membrane Engineering for Green Process Engineering. Engineering 2017 , 3 , 290–298. [ Google Scholar ] [ CrossRef ]
  • Khoo, Y.S.; Lau, W.J.; Liang, Y.Y.; Yusof, N.; Ismail, A.F. Surface modification of PA layer of TFC membranes: Does it effective for performance Improvement? J. Ind. Eng. Chem. 2021 , 102 , 271–292. [ Google Scholar ] [ CrossRef ]
  • Cheng, L.; Xie, Y.; Li, X.; Liu, F.; Wang, Y.; Li, J. Lecithin decorated thin film composite (TFC) nanofiltration membranes for enhanced sieving performance. J. Membr. Sci. 2023 , 677 , 121632. [ Google Scholar ] [ CrossRef ]
  • Fajardo-Diaz, J.L.; Morelos-Gomez, A.; Cruz-Silva, R.; Matsumoto, A.; Ueno, Y.; Takeuchi, N.; Kitamura, K.; Miyakawa, H.; Tejima, S.; Takeuchi, K.; et al. Antifouling performance of spiral wound type module made of carbon nanotubes/polyamide composite RO membrane for seawater desalination. Desalination 2022 , 523 , 115445. [ Google Scholar ] [ CrossRef ]
  • Lim, Y.J.; Goh, K.; Kurihara, M.; Wang, R. Seawater desalination by reverse osmosis: Current development and future challenges in membrane fabrication—A review. J. Membr. Sci. 2021 , 629 , 119292. [ Google Scholar ] [ CrossRef ]
  • Voutchkov, N. Considerations for selection of seawater filtration pretreatment system. Desalination 2010 , 261 , 354–364. [ Google Scholar ] [ CrossRef ]
  • Liu, J.; Yue, M.; Zhao, L.; He, J.; Wu, X.; Wang, L. Semi batch dual-pass nanofiltration as scaling-controlled pretreatment for seawater purification and concentration with high recovery rate. Desalination 2021 , 506 , 115015. [ Google Scholar ] [ CrossRef ]
  • Mazhari, R.; Bide, Y.; Hosseini, S.S.; Shokrollahzadeh, S. Modification of polyacrylonitrile TFC-FO membrane by biowaste-derived hydrophilic N-doped carbon quantum dots for enhanced water desalination performance. Desalination 2023 , 565 , 116888. [ Google Scholar ] [ CrossRef ]
  • Patel, M.; Kumar, R.; Kishor, K.; Mlsna, T.; Pittman, C.U.; Mohan, D. Pharmaceuticals of Emerging Concern in Aquatic Systems: Chemistry, Occurrence, Effects, and Removal Methods. Chem. Rev. 2019 , 119 , 3510–3673. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Yadav, D.; Karki, S.; Gohain, M.B.; Ingole, P.G. Development of micropollutants removal process using thin-film nanocomposite membranes prepared by green new vapour-phase interfacial polymerization method. Chem. Eng. J. 2023 , 472 , 144940. [ Google Scholar ] [ CrossRef ]
  • Edo, C.; González-Pleiter, M.; Leganés, F.; Fernández-Piñas, F.; Rosal, R. Fate of microplastics in wastewater treatment plants and their environmental dispersion with effluent and sludge. Environ. Pollut. 2020 , 259 , 113837. [ Google Scholar ] [ CrossRef ]
  • Fryczkowska, B.; Przywara, L. Removal of microplastics from industrial wastewater utilizing an ultrafiltration composite membrane rGO/PAN application. DWT 2021 , 214 , 252–262. [ Google Scholar ] [ CrossRef ]
  • Zhang, B.; Wu, Q.; Gao, S.; Ruan, Y.; Qi, G.; Guo, K.; Zeng, J. Distribution and removal mechanism of microplastics in urban wastewater plants systems via different processes. Environ. Pollut. 2023 , 320 , 121076. [ Google Scholar ] [ CrossRef ]
  • Wang, J.; Yu, W.; Graham, N.J.D.; Jiang, L. Evaluation of a novel polyamide-polyethylenimine nanofiltration membrane for wastewater treatment: Removal of Cu 2+ ions. Chem. Eng. J. 2020 , 392 , 123769. [ Google Scholar ] [ CrossRef ]
  • Tian, J.; Chang, H.; Gao, S.; Zhang, R. How to fabricate a negatively charged NF membrane for heavy metal removal via the interfacial polymerization between PIP and TMC? Desalination 2020 , 491 , 114499. [ Google Scholar ] [ CrossRef ]
  • Wanjiya, M.; Zhang, J.-C.; Wu, B.; Yin, M.-J.; An, Q.-F. Nanofiltration membranes for sustainable removal of heavy metal ions from polluted water: A review and future perspective. Desalination 2024 , 578 , 117441. [ Google Scholar ] [ CrossRef ]
  • Peng, H.Y.; Lau, S.K.; Yong, W.F. Recent advances of thin film composite nanofiltration membranes for Mg 2+ /Li + separation. Adv. Membr. 2024 , 4 , 100093. [ Google Scholar ] [ CrossRef ]
  • Xie, M.; Nghiem, L.D.; Price, W.E.; Elimelech, M. Toward Resource Recovery from Wastewater: Extraction of Phosphorus from Digested Sludge Using a Hybrid Forward Osmosis–Membrane Distillation Process. Environ. Sci. Technol. Lett. 2014 , 1 , 191–195. [ Google Scholar ] [ CrossRef ]
  • Zhu, R.; Wang, S.; Srinivasakannan, C.; Li, S.; Yin, S.; Zhang, L.; Jiang, X.; Zhou, G.; Zhang, N. Lithium extraction from salt lake brines with high magnesium/lithium ratio: A review. Environ. Chem. Lett. 2023 , 21 , 1611–1626. [ Google Scholar ] [ CrossRef ]
  • Wen, X.; Ma, P.; Zhu, C.; He, Q.; Deng, X. Preliminary study on recovering lithium chloride from lithium-containing waters by nanofiltration. Sep. Purif. Technol. 2006 , 49 , 230–236. [ Google Scholar ] [ CrossRef ]
  • Avlonitis, S.A.; Pappas, M.; Moutesidis, K. A unified model for the detailed investigation of membrane modules and RO plants performance. Desalination 2007 , 203 , 218–228. [ Google Scholar ] [ CrossRef ]
  • Qiu, T.Y.; Davies, P.A. Concentration polarization model of spiral-wound membrane modules with application to batch-mode RO desalination of brackish water. Desalination 2015 , 368 , 36–47. [ Google Scholar ] [ CrossRef ]
  • Gu, B.; Xu, X.Y.; Adjiman, C.S. A predictive model for spiral wound reverse osmosis membrane modules: The effect of winding geometry and accurate geometric details. Comput. Chem. Eng. 2017 , 96 , 248–265. [ Google Scholar ] [ CrossRef ]
  • Ali, A.; Shirazi, M.M.A.; Nthunya, L.; Castro-Muñoz, R.; Ismail, N.; Tavajohi, N.; Zaragoza, G.; Quist-Jensen, C.A. Progress in module design for membrane distillation. Desalination 2024 , 581 , 117584. [ Google Scholar ] [ CrossRef ]
  • Li, W.; Bai, B.; He, R.; Song, J.; He, T. Lithium solvent extraction by a novel multiframe flat membrane contactor module. Sep. Purif. Technol. 2024 , 328 , 125061. [ Google Scholar ] [ CrossRef ]
  • Yang, X.; Wang, R.; Fane, A.G. Novel designs for improving the performance of hollow fiber membrane distillation modules. J. Membr. Sci. 2011 , 384 , 52–62. [ Google Scholar ] [ CrossRef ]
  • Singh, D.; Li, L.; Obusckovic, G.; Chau, J.; Sirkar, K.K. Novel cylindrical cross-flow hollow fiber membrane module for direct contact membrane distillation-based desalination. J. Membr. Sci. 2018 , 545 , 312–322. [ Google Scholar ] [ CrossRef ]
  • Thomas, N.; Sreedhar, N.; Al-Ketan, O.; Rowshan, R.; Al-Rub, R.K.A.; Arafat, H. 3D printed triply periodic minimal surfaces as spacers for enhanced heat and mass transfer in membrane distillation. Desalination 2018 , 443 , 256–271. [ Google Scholar ] [ CrossRef ]
  • Ding, X.; Wang, F.; Lin, G.; Tang, B.; Li, X.; Zhou, G.; Wang, W.; Zhang, J.; Shi, Y. The enhancement of separation performance of hollow fiber membrane modules: From the perspective of membranes and membrane modules structural optimization design. Chem. Eng. Sci. 2023 , 280 , 119106. [ Google Scholar ] [ CrossRef ]
  • Contreras-Martínez, J.; García-Payo, C.; Arribas, P.; Rodríguez-Sáez, L.; Lejarazu-Larrañaga, A.; García-Calvo, E.; Khayet, M. Recycled reverse osmosis membranes for forward osmosis technology. Desalination 2021 , 519 , 115312. [ Google Scholar ] [ CrossRef ]
  • Chowdhury, M.R.; Steffes, J.; Huey, B.D.; McCutcheon, J.R. 3D printed polyamide membranes for desalination. Science 2018 , 361 , 682–686. [ Google Scholar ] [ CrossRef ]
  • Qian, X.; Anvari, A.; Hoek, E.M.V.; McCutcheon, J.R. Advancements in conventional and 3D printed feed spacers in membrane modules. Desalination 2023 , 556 , 116518. [ Google Scholar ] [ CrossRef ]
  • Dang, B.V.; Charlton, A.J.; Li, Q.; Kim, Y.C.; Taylor, R.A.; Le-Clech, P.; Barber, T. Can 3D-printed spacers improve filtration at the microscale? Sep. Purif. Technol. 2021 , 256 , 117776. [ Google Scholar ] [ CrossRef ]
  • Sreedhar, N.; Thomas, N.; Al-Ketan, O.; Rowshan, R.; Hernandez, H.; Al-Rub, R.K.A.; Arafat, H.A. 3D printed feed spacers based on triply periodic minimal surfaces for flux enhancement and biofouling mitigation in RO and UF. Desalination 2018 , 425 , 12–21. [ Google Scholar ] [ CrossRef ]
  • Low, Z.-X.; Chua, Y.T.; Ray, B.M.; Mattia, D.; Metcalfe, I.S.; Patterson, D.A. Perspective on 3D printing of separation membranes and comparison to related unconventional fabrication techniques. J. Membr. Sci. 2017 , 523 , 596–613. [ Google Scholar ] [ CrossRef ]
  • Bozkurt, Y.; Karayel, E. D printing technology; methods; biomedical applications, future opportunities and trends. J. Mater. Res. Technol. 2021 , 14 , 1430–1450. [ Google Scholar ] [ CrossRef ]
  • Yanar, N.; Kallem, P.; Son, M.; Park, H.; Kang, S.; Choi, H. A New era of water treatment technologies: 3D printing for membranes. J. Ind. Eng. Chem. 2020 , 91 , 1–14. [ Google Scholar ] [ CrossRef ]
  • Lee, J.-Y.; Tan, W.S.; An, J.; Chua, C.K.; Tang, C.Y.; Fane, A.G.; Chong, T.H. The potential to enhance membrane module design with 3D printing technology. J. Membr. Sci. 2016 , 499 , 480–490. [ Google Scholar ] [ CrossRef ]
  • Ronen, A.; Lerman, S.; Ramon, G.Z.; Dosoretz, C.G. Experimental characterization and numerical simulation of the anti-biofuling activity of nanosilver-modified feed spacers in membrane filtration. J. Membr. Sci. 2015 , 475 , 320–329. [ Google Scholar ] [ CrossRef ]
  • Thamaraiselvan, C.; Carmiel, Y.; Eliad, G.; Sukenik, C.N.; Semiat, R.; Dosoretz, C.G. Modification of a polypropylene feed spacer with metal oxide-thin film by chemical bath deposition for biofouling control in membrane filtration. J. Membr. Sci. 2019 , 573 , 511–519. [ Google Scholar ] [ CrossRef ]
  • Abdelrasoul, A.; Doan, H.; Lohi, A.; Cheng, C. Contaminated particle characteristics influence on membrane fouling. Water Environ. J. 2017 , 31 , 31–38. [ Google Scholar ] [ CrossRef ]
  • Madaeni, S.S.; Samieirad, S. Chemical cleaning of reverse osmosis membrane fouled by wastewater. Desalination 2010 , 257 , 80–86. [ Google Scholar ] [ CrossRef ]
  • Bogler, A.; Lin, S.; Bar-Zeev, E. Biofouling of membrane distillation, forward osmosis and pressure retarded osmosis: Principles, impacts and future directions. J. Membr. Sci. 2017 , 542 , 378–398. [ Google Scholar ] [ CrossRef ]
  • Cai, Y.-H.; Gopalakrishnan, A.; Deshmukh, K.P.; Schäfer, A.I. Renewable energy powered membrane technology: Implications of adhesive interaction between membrane and organic matter on spontaneous osmotic backwash cleaning. Water Res. 2022 , 221 , 118752. [ Google Scholar ] [ CrossRef ]
  • Mi, Y.; Wang, N.; Fang, X.; Cao, J.; Tao, M.; Cao, Z. Interfacial polymerization nanofiltration membrane with visible light photocatalytic self-cleaning performance by incorporation of CQD/TiO 2 . Sep. Purif. Technol. 2021 , 277 , 119500. [ Google Scholar ] [ CrossRef ]
  • Fan, Q.; Yan, L.; Tripp, M.W.; Kachel, S.R.; Chen, M.; Foster, A.S.; Koert, U.; Liljeroth, P.; Gottfried, J.M. Biphenylene network: A nonbenzenoid carbon allotrope. Science 2021 , 372 , 852–856. [ Google Scholar ] [ CrossRef ]
  • Niu, Y.; Meng, K.; Ming, S.; Chen, H.; Yu, X.; Rong, J.; Li, X. Computational simulation of self-cleaning carbon-based membranes with zeolite porous structure for desalination. Diam. Relat. Mater. 2023 , 136 , 109925. [ Google Scholar ] [ CrossRef ]
  • Li, J.; Xie, Y.; Cheng, L.; Li, X.; Liu, F.; Wang, Z. Photo-Fenton reaction derived self-cleaning nanofiltration membrane with MOFs coordinated biopolymers for efficient dye/salt separation. Desalination 2023 , 553 , 116459. [ Google Scholar ] [ CrossRef ]
  • Xu, M.; Feng, X.; Liu, Z.; Han, X.; Zhu, J.; Wang, J.; Bruggen, B.V.D.; Zhang, Y. MOF laminates functionalized polyamide self-cleaning membrane for advanced loose nanofiltration. Sep. Purif. Technol. 2021 , 275 , 119150. [ Google Scholar ] [ CrossRef ]
  • Liu, L.-F.; Cai, Z.-B.; Shen, J.-N.; Wu, L.-X.; Hoek, E.M.V.; Gao, C.-J. Fabrication and characterization of a novel poly(amide-urethane@imide) TFC reverse osmosis membrane with chlorine-tolerant property. J. Membr. Sci. 2014 , 469 , 397–409. [ Google Scholar ] [ CrossRef ]
  • Stolov, M.; Freger, V. Degradation of Polyamide Membranes Exposed to Chlorine: An Impedance Spectroscopy Study. Environ. Sci. Technol. 2019 , 53 , 2618–2625. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Verbeke, R.; Gómez, V.; Vankelecom, I.F.J. Chlorine-resistance of reverse osmosis (RO) polyamide membranes. Prog. Polym. Sci. 2017 , 72 , 1–15. [ Google Scholar ] [ CrossRef ]
  • Lee, K.P.; Arnot, T.C.; Mattia, D. A review of reverse osmosis membrane materials for desalination—Development to date and future potential. J. Membr. Sci. 2011 , 370 , 1–22. [ Google Scholar ] [ CrossRef ]
  • Inukai, S.; Cruz-Silva, R.; Ortiz-Medina, J.; Morelos-Gomez, A.; Takeuchi, K.; Hayashi, T.; Tanioka, A.; Araki, T.; Tejima, S.; Noguchi, T.; et al. High-performance multi-functional reverse osmosis membranes obtained by carbon nanotube·polyamide nanocomposite. Sci. Rep. 2015 , 5 , 13562. [ Google Scholar ] [ CrossRef ]
  • Kim, S.G.; Hyeon, D.H.; Chun, J.H.; Chun, B.-H.; Kim, S.H. Nanocomposite poly(arylene ether sulfone) reverse osmosis membrane containing functional zeolite nanoparticles for seawater desalination. J. Membr. Sci. 2013 , 443 , 10–18. [ Google Scholar ] [ CrossRef ]
  • Li, J.; Peng, H.; Liu, K.; Zhao, Q. Polyester Nanofiltration Membranes for Efficient Cations Separation. Adv. Mater. 2024 , 36 , 2309406. [ Google Scholar ] [ CrossRef ]
  • Hashiba, K.; Nakai, S.; Ohno, M.; Nishijima, W.; Gotoh, T.; Iizawa, T. Deterioration Mechanism of a Tertiary Polyamide Reverse Osmosis Membrane by Hypochlorite. Environ. Sci. Technol. 2019 , 53 , 9109–9117. [ Google Scholar ] [ CrossRef ]
  • Peng, H.; Yu, K.; Liu, X.; Li, J.; Hu, X.; Zhao, Q. Quaternization-spiro design of chlorine-resistant and high-permeance lithium separation membranes. Nat. Commun. 2023 , 14 , 5483. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Guan, D.; Hu, Z.; Xie, P.; Sun, Z.; Zhang, Z.; Shan, Y.; Gong, C.; Wu, Y. Osmotic cleaning to control inorganic fouling of nanofiltration membrane for seawater desalination. J. Environ. Chem. Eng. 2023 , 11 , 110551. [ Google Scholar ] [ CrossRef ]
  • Elimelech, M.; Phillip, W.A. The Future of Seawater Desalination: Energy, Technology, and the Environment. Science 2011 , 333 , 712–717. [ Google Scholar ] [ CrossRef ] [ PubMed ]
  • Dalanta, F.; Handoko, D.T.; Hadiyanto, H.; Kusworo, T.D. Recent implementations of process intensification strategy in membrane-based technology: A review. Chem. Eng. Res. Des. 2024 , 202 , 74–91. [ Google Scholar ] [ CrossRef ]
  • Gohil, J.M.; Suresh, A.K. Chlorine attack on reverse osmosis membranes: Mechanisms and mitigation strategies. J. Membr. Sci. 2017 , 541 , 108–126. [ Google Scholar ] [ CrossRef ]
  • Zhang, Y.; Yu, D.; Jia, C.; Sun, L.; Tong, A.; Wang, Y.; Wang, Y.; Huang, L.; Tang, J. Advances and promotion strategies of membrane-based methods for extracting lithium from brine. Desalination 2023 , 566 , 116891. [ Google Scholar ] [ CrossRef ]
  • Allouzi, M.M.A.; Tang, D.Y.Y.; Chew, K.W.; Rinklebe, J.; Bolan, N.; Allouzi, S.M.A.; Show, P.L. Micro (nano) plastic pollution: The ecological influence on soil-plant system and human health. Sci. Total Environ. 2021 , 788 , 147815. [ Google Scholar ] [ CrossRef ]

Click here to enlarge figure

Type Name Framework Operating Condition Performances Ref.
amine monomer m-Phenylenediamine (MPD) 1.5 MPa,
25 °C
2000 ppm NaCl
45–60 L/m h
98.8%
[ ]
piperazine (PIP) 3.5 bar,
500 mg/L MgSO
14.3 (L/m hbar)
(98.6%)
[ ]
Tris(2-aminoethyl)amine (TAEA) 1.0 MPa, 25 ℃
2000 ppm
135.9 (L/m h)
S / = 25.94
[ ]
1,3,5(Tri-piperazine)-triazine (TPT) 100 psi, 25 ± 1 °C
2000 ppm MgSO
8.68 (L/m hbar)
98.6%
[ ]
m-phenylenediamine-5-sulfonic acid (SMPD) 15 bar,
2000 ppm,
NaCl
30.0–55.7 (L/m hbar)
47–94%
[ ]
1,3cyclohexanebis(methylamine)
(CHMA)
10 bar,
2000 ppm,
NaCl
56 (L/m hbar)
77%
[ ]
Chloride monomer Trimesoyl chloride (TMC) 1.6 MPa, 25 °C
2000-ppm NaCl
3.31 ± 0.10(L/m hbar)
99.3 ± 0.1%
[ ]
terephthaloyl chloride (TPC) 10 bar, 25 °C7.64 ± 0.1 (L/m hbar)[ ]
5-isocyanato-isophthaloyl chloride (ICIC) 1.55 MPa, 25 °C
NaCl
---- [ ]
5-chloroformyloxy-isophthaloyl chloride (CFIC) 1–3 MPa 25 °C
500–8000 mg/L NaCl
20 (L/m h)
50.2%
[ ]
3,4′,5-biphenyl triacyl chloride (BTRC) 20 bar,
2000 ppm,
NaCl
33 (L/m h)
98.9%
[ ]
3,3′,5,5′-biphenyltetraacyl
chloride (BTEC)
55 bar,
32,800 ppm,
NaCl
30.2–48.3 (L/m h)
99.3–99.7%
[ ]
The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

Share and Cite

Geng, H.; Zhang, W.; Zhao, X.; Shao, W.; Wang, H. Research on Reverse Osmosis (RO)/Nanofiltration (NF) Membranes Based on Thin Film Composite (TFC) Structures: Mechanism, Recent Progress and Application. Membranes 2024 , 14 , 190. https://doi.org/10.3390/membranes14090190

Geng H, Zhang W, Zhao X, Shao W, Wang H. Research on Reverse Osmosis (RO)/Nanofiltration (NF) Membranes Based on Thin Film Composite (TFC) Structures: Mechanism, Recent Progress and Application. Membranes . 2024; 14(9):190. https://doi.org/10.3390/membranes14090190

Geng, Huibin, Weihao Zhang, Xiaoxu Zhao, Wei Shao, and Haitao Wang. 2024. "Research on Reverse Osmosis (RO)/Nanofiltration (NF) Membranes Based on Thin Film Composite (TFC) Structures: Mechanism, Recent Progress and Application" Membranes 14, no. 9: 190. https://doi.org/10.3390/membranes14090190

Article Metrics

Article access statistics, further information, mdpi initiatives, follow mdpi.

MDPI

Subscribe to receive issue release notifications and newsletters from MDPI journals

IMAGES

  1. How to Write an Introduction for a Research Paper Step-by-Step?

    good introductions for a research paper

  2. How to Write a Research Paper Introduction: Tips & Examples

    good introductions for a research paper

  3. How to Write Introduction for Research

    good introductions for a research paper

  4. Introductions for Research Papers

    good introductions for a research paper

  5. How to Write a Research Paper Introduction: Tips & Examples

    good introductions for a research paper

  6. How to Write an Introduction for a Research Paper Step-by-Step?

    good introductions for a research paper

VIDEO

  1. Writing good introductions for TV 1

  2. Writing good introductions for TV 4

  3. Mastering The Art Of Engaging Introductions In Academic Writing!

  4. Writing Paper Introduction: GPTs for Research & Analysis

  5. Writing good introductions for TV 3

  6. Writing academic papers

COMMENTS

  1. Writing a Research Paper Introduction

    Writing a Research Paper Introduction | Step-by-Step Guide

  2. How to Write a Research Paper Introduction (with Examples)

    How to Write a Research Paper Introduction (with Examples)

  3. How to Write a Research Paper Introduction

    How to Write a Research Paper Introduction

  4. Writing a Research Paper Introduction (with 3 Examples)

    Writing a Research Paper Introduction (with 3 Examples)

  5. Introductions

    Introductions | Harvard College Writing Center

  6. Research Paper Introduction

    Research paper introduction is the first section of a research paper that provides an overview of the study, its purpose, and the research question (s) or hypothesis (es) being investigated. It typically includes background information about the topic, a review of previous research in the field, and a statement of the research objectives.

  7. How to Write an Essay Introduction

    How to Write an Essay Introduction | 4 Steps & Examples

  8. How to Write an Introduction for a Research Paper

    Step 2: Building a solid foundation with background information. Including background information in your introduction serves two major purposes: It helps to clarify the topic for the reader. It establishes the depth of your research. The approach you take when conveying this information depends on the type of paper.

  9. How to Write an Introduction for a Research Paper

    After you've done some extra polishing, I suggest a simple test for the introductory section. As an experiment, chop off the first few paragraphs. Let the paper begin on, say, paragraph 2 or even page 2. If you don't lose much, or actually gain in clarity and pace, then you've got a problem. There are two solutions.

  10. How to Write an Introduction for a Research Paper

    When writing your research paper introduction, there are several key elements you should include to ensure it is comprehensive and informative. A hook or attention-grabbing statement to capture the reader's interest. It can be a thought-provoking question, a surprising statistic, or a compelling anecdote that relates to your research topic.

  11. How to Write a Research Paper Introduction in 4 Steps

    1. Get your readers' attention. To speak to your readers effectively, you need to know who they are. Consider who is likely to read the paper and the extent of their knowledge on the topic. Then begin your introduction with a sentence or two that will capture their interest.

  12. How to write an introduction for a research paper

    3. Include signposts. A strong introduction includes clear signposts that outline what you will cover in the rest of the paper. You can signal this by using words like, "in what follows," and by describing the steps that you will take to build your argument. 4. Situate your argument within the scholarly conversation.

  13. How to Write an Introduction, With Examples

    How to Write an Introduction, With Examples

  14. How to Write a Research Paper: the LEAP approach (+cheat sheet)

    How to Write a Research Paper: the LEAP approach ...

  15. Starting Your Research Paper: Writing an Introductory Paragraph

    Writing an Introductory Paragraph - Starting Your Research ...

  16. How to Write a Research Introduction: 10 Steps (with Pictures)

    Download Article. 1. Announce your research topic. You can start your introduction with a few sentences which announce the topic of your paper and give an indication of the kind of research questions you will be asking. This is a good way to introduce your readers to your topic and pique their interest.

  17. Introductions

    Introductions - UNC Writing Center

  18. How to Write an Introduction For a Research Paper

    Be succinct - it is advised that your opening introduction consists of around 8-9 percent of the overall amount of words in your article (for example, 160 words for a 2000 words essay). Make a strong and unambiguous thesis statement. Explain why the article is significant in 1-2 sentences. Remember to keep it interesting.

  19. Research Guides: Writing a Scientific Paper: INTRODUCTION

    INTRODUCTION - Writing a Scientific Paper

  20. How to Write an Introduction for a Research Paper

    Research introduction sample. Now that you know how the idea goes in the introduction of a research paper, let's see the practical examples of good and bad introductions and discuss their differences. Good example: Title: "Exploring the Impact of Climate Change on Biodiversity: A Comprehensive Analysis". Introduction:

  21. How to Write an Effective Introduction

    Abstract. Ideally, the Introduction is an essential attention grabbing section of a research paper. If written correctly, the Introduction peaks the reader's interest as well as serves as a roadmap for the rest of the paper. An effective Introduction builds off related empirical research and demonstrates a gap in which the current study fills.

  22. How to write an introduction section of a scientific article?

    How to write an introduction section of a scientific article?

  23. Crafting Effective Introductions for Research Papers: Essential Tips

    Speaker 1: After the title page and abstract, the reader's first true interaction with your research paper is the introduction. Your introduction will establish the foundation upon which your readers approach your work, and if you use the tips we discuss in this video, these readers should be able to logically apply the rules set in your introduction to all parts of your paper, all the way ...

  24. What should I include in a research paper introduction?

    What should I include in a research paper introduction?

  25. Target localization and defect detection of distribution insulators

    The main work of this paper is as follows: (1) In order to explore more efficient and accurate machine learning algorithms for target localization, ECA attention mechanism is introduced in SqueezeNet. An optimization algorithm ECA-SqueezeNet for insulator positioning was developed by improving the SqueezeNet network.

  26. Membranes

    The global shortage of clean water is a major problem, even in water-rich regions. To solve this problem, low-cost and energy-efficient water treatment methods are needed. Membrane separation technology (MST), as a separation method with low energy consumption, low cost, and good separation effect, has been widely used to deal with seawater desalination, resource recovery, industrial ...