{"title":"确定电极反应的反应顺序","authors":"","doi":"10.1016/j.coelec.2024.101597","DOIUrl":null,"url":null,"abstract":"<div><div>Information of reaction orders is prerequisite in unveiling the mechanism(s) of complex electrocatalytic reactions, which is of great help in benchmarking the intrinsic electrocatalytic performance and in establishing the structure–activity relationship. However, electrochemical reaction orders for only few electrocatalytic reactions have hitherto been unambiguously quantified, due to the complexities of the reaction themselves and the complexities of interfacial environments. The apparent reaction orders may depend on the coverage of the adsorbed reactant, reactive intermediates at the electrode interface, their adsorption behavior, the occurrence of parallel pathways as well as existence pre or postchemical reactions. In this short review, theories and methods used for determination of the reaction orders for electrode reactions are summarized and exemplified by taking hydrogen evolution/oxidation reaction (HER/HOR) and oxygen reduction reaction (ORR) under rotating disk electrode configuration as model reactions. Frequently encountered challenges in accurate determination the reaction orders for complex electrocatalytic reactions are discussed.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":null,"pages":null},"PeriodicalIF":7.9000,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Determination of the reaction orders for electrode reactions\",\"authors\":\"\",\"doi\":\"10.1016/j.coelec.2024.101597\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Information of reaction orders is prerequisite in unveiling the mechanism(s) of complex electrocatalytic reactions, which is of great help in benchmarking the intrinsic electrocatalytic performance and in establishing the structure–activity relationship. However, electrochemical reaction orders for only few electrocatalytic reactions have hitherto been unambiguously quantified, due to the complexities of the reaction themselves and the complexities of interfacial environments. The apparent reaction orders may depend on the coverage of the adsorbed reactant, reactive intermediates at the electrode interface, their adsorption behavior, the occurrence of parallel pathways as well as existence pre or postchemical reactions. In this short review, theories and methods used for determination of the reaction orders for electrode reactions are summarized and exemplified by taking hydrogen evolution/oxidation reaction (HER/HOR) and oxygen reduction reaction (ORR) under rotating disk electrode configuration as model reactions. Frequently encountered challenges in accurate determination the reaction orders for complex electrocatalytic reactions are discussed.</div></div>\",\"PeriodicalId\":11028,\"journal\":{\"name\":\"Current Opinion in Electrochemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":7.9000,\"publicationDate\":\"2024-10-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Opinion in Electrochemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2451910324001583\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Electrochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451910324001583","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Determination of the reaction orders for electrode reactions
Information of reaction orders is prerequisite in unveiling the mechanism(s) of complex electrocatalytic reactions, which is of great help in benchmarking the intrinsic electrocatalytic performance and in establishing the structure–activity relationship. However, electrochemical reaction orders for only few electrocatalytic reactions have hitherto been unambiguously quantified, due to the complexities of the reaction themselves and the complexities of interfacial environments. The apparent reaction orders may depend on the coverage of the adsorbed reactant, reactive intermediates at the electrode interface, their adsorption behavior, the occurrence of parallel pathways as well as existence pre or postchemical reactions. In this short review, theories and methods used for determination of the reaction orders for electrode reactions are summarized and exemplified by taking hydrogen evolution/oxidation reaction (HER/HOR) and oxygen reduction reaction (ORR) under rotating disk electrode configuration as model reactions. Frequently encountered challenges in accurate determination the reaction orders for complex electrocatalytic reactions are discussed.
期刊介绍:
The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner:
1.The views of experts on current advances in electrochemistry in a clear and readable form.
2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications.
In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle:
• Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •