Suprobhat Singha Roy, Ragunath Madhu, Arun Karmakar and Subrata Kundu*,
{"title":"从理论到实践:电催化水分离中塔菲尔斜率分析技术的批判性比较评估","authors":"Suprobhat Singha Roy, Ragunath Madhu, Arun Karmakar and Subrata Kundu*, ","doi":"10.1021/acsmaterialslett.4c00831","DOIUrl":null,"url":null,"abstract":"<p >Water splitting for clean hydrogen production is gaining popularity, driving researchers to develop efficient electrocatalysts with minimal energy input, reduced overpotentials, lower Tafel slopes, and enhanced stability. The Tafel slope is an important kinetic parameter to assess an electrocatalyst’s performance. Hence, an accurate determination of the Tafel slope experimentally using appropriate techniques, along with knowledge of multielectron transfer reactions’ kinetics, is of utmost importance. For such reactions, identifying whether the rate-determining step involves an electron transfer or chemical transformation is a key factor. The Tafel slope provides insight into this, revealing the exact equilibrium and mechanism of the reaction. This Perspective explores the theoretical background of the Tafel slope and current experimental techniques for its accurate determination. It discusses the pros and cons of each technique, providing step-by-step guidance for precise Tafel slope calculation, which is essential for assessing electrocatalyst performance in water splitting reactions.</p>","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":null,"pages":null},"PeriodicalIF":9.6000,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"From Theory to Practice: A Critical and Comparative Assessment of Tafel Slope Analysis Techniques in Electrocatalytic Water Splitting\",\"authors\":\"Suprobhat Singha Roy, Ragunath Madhu, Arun Karmakar and Subrata Kundu*, \",\"doi\":\"10.1021/acsmaterialslett.4c00831\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Water splitting for clean hydrogen production is gaining popularity, driving researchers to develop efficient electrocatalysts with minimal energy input, reduced overpotentials, lower Tafel slopes, and enhanced stability. The Tafel slope is an important kinetic parameter to assess an electrocatalyst’s performance. Hence, an accurate determination of the Tafel slope experimentally using appropriate techniques, along with knowledge of multielectron transfer reactions’ kinetics, is of utmost importance. For such reactions, identifying whether the rate-determining step involves an electron transfer or chemical transformation is a key factor. The Tafel slope provides insight into this, revealing the exact equilibrium and mechanism of the reaction. This Perspective explores the theoretical background of the Tafel slope and current experimental techniques for its accurate determination. It discusses the pros and cons of each technique, providing step-by-step guidance for precise Tafel slope calculation, which is essential for assessing electrocatalyst performance in water splitting reactions.</p>\",\"PeriodicalId\":19,\"journal\":{\"name\":\"ACS Materials Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2024-06-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Materials Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c00831\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c00831","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
From Theory to Practice: A Critical and Comparative Assessment of Tafel Slope Analysis Techniques in Electrocatalytic Water Splitting
Water splitting for clean hydrogen production is gaining popularity, driving researchers to develop efficient electrocatalysts with minimal energy input, reduced overpotentials, lower Tafel slopes, and enhanced stability. The Tafel slope is an important kinetic parameter to assess an electrocatalyst’s performance. Hence, an accurate determination of the Tafel slope experimentally using appropriate techniques, along with knowledge of multielectron transfer reactions’ kinetics, is of utmost importance. For such reactions, identifying whether the rate-determining step involves an electron transfer or chemical transformation is a key factor. The Tafel slope provides insight into this, revealing the exact equilibrium and mechanism of the reaction. This Perspective explores the theoretical background of the Tafel slope and current experimental techniques for its accurate determination. It discusses the pros and cons of each technique, providing step-by-step guidance for precise Tafel slope calculation, which is essential for assessing electrocatalyst performance in water splitting reactions.
期刊介绍:
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.