English

Introduction to Electrocatalytic Kinetics

• Yifei Xu ,
• Hanwen Yang ,
• Xiaoxia Chang ,
• Bingjun Xu ^,

• College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Corresponding author: Bingjun Xu, b_xu@pku.edu.cn

• Received Date: 20 October 2022
  Accepted Date: 21 November 2022
  Revised Date: 21 November 2022
  Available Online: 15 April 2023

Abstract: 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 CO₂, 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.

Key words:
• Electrocatalysis
•  /  Reaction kinetics
•  /  Electrochemical activation parameter

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