Recent progress in understanding mechanism of electrochemical oxygen evolution reaction via operando/in situ characterizations

IF 11.5 Q1 CHEMISTRY, PHYSICAL

Chem Catalysis Pub Date : 2025-03-28 DOI:10.1016/j.checat.2025.101332

Rashid Mehmood, Fuxiang Zhang

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Abstract

Understanding the mechanism of the oxygen evolution reaction (OER) represents a bottleneck in designing efficient energy storage schemes based on water splitting. However, identifying the mechanism experimentally has proven a grand challenge. This could be due to the diverse nature of OER intermediates. Recent progress in operando/in situ characterizations has provided an unprecedented understanding of the OER mechanisms concerning active site identification, as well as other OER mechanisms. On this basis, we offer a comprehensive discussion on experimental evidence for identifying OER intermediates experimentally, aligning them with theoretical calculations in designing future green energy systems. Finally, some perspectives that are anticipated to be beneficial to addressing the current challenges in operando/in situ monitoring of active site identification and understanding of the underlying mechanisms of OER electrocatalysts are presented. This review aims to provide new insights into the rational design of OER catalytic materials and offers a complete understanding of OER mechanisms.

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利用operando/原位表征了解电化学析氧反应机理的最新进展

了解析氧反应（OER）的机理是设计基于水裂解的高效储能方案的瓶颈。然而，通过实验确定这一机制已被证明是一个巨大的挑战。这可能是由于OER中间体的多样性。最近在操作位点/原位表征方面的进展使人们对有关活性位点识别的OER机制以及其他OER机制有了前所未有的了解。在此基础上，我们对实验证据进行了全面的讨论，以确定OER中间体的实验证据，并将其与设计未来绿色能源系统的理论计算相结合。最后，提出了一些有望有助于解决当前在操作/原位监测活性位点识别和理解OER电催化剂潜在机制方面面临的挑战的观点。本综述旨在为OER催化材料的合理设计提供新的见解，并提供对OER机理的完整理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chem Catalysis

CiteScore

10.50

自引率

6.40%

发文量

期刊介绍： Chem Catalysis is a monthly journal that publishes innovative research on fundamental and applied catalysis, providing a platform for researchers across chemistry, chemical engineering, and related fields. It serves as a premier resource for scientists and engineers in academia and industry, covering heterogeneous, homogeneous, and biocatalysis. Emphasizing transformative methods and technologies, the journal aims to advance understanding, introduce novel catalysts, and connect fundamental insights to real-world applications for societal benefit.