电催化动力学简介

Introduction to Electrocatalytic Kinetics

电催化过程是实现社会向可再生能源与化学品转型的主要驱动力之一。电催化动力学分析是探索反应机理和建立电催化剂构效关系行之有效的方法。本文将通过三个广泛研究的电催化反应:电化学CO_(2)、CO还原反应和氧还原反应,探讨Tafel分析的普遍过程、隐含假设以及需要注意的问题。此外,本文将介绍电化学反应活化参数的基本概念和关键热力学、动力学变量之间的关系。

Electrocatalytic reactions and processes are expected to be major drivers in society's shift toward renewable energy and chemicals.Electrocatalytic kinetic analysis is an accessible and informative technique to interrogate reaction mechanisms and establish structure–activity relationships.In this tutorial,we discuss general procedures,implicit assumptions,and potential pitfalls when conducting the Tafel analysis in the context of three widely investigated electrocatalytic reactions,i.e.,the electrochemical CO_(2),CO,and O2 reduction reactions.Basic concepts and relations among key thermodynamic and kinetic variables are also covered to help interpret the activation parameters of electrochemical reactions.