Issue 4, 2023

Recent advances in Ru-based electrocatalysts for oxygen evolution reaction

Abstract

The oxygen evolution reaction (OER), as a four-electron transfer process with large overpotential loss that is also kinetically sluggish, is one of the most crucial electrochemical processes to convert renewable energy into chemical fuels. Ruthenium (Ru)-based electrocatalysts for the OER have several advantageous features including high activity, pH-universality and the lowest price in the noble metal family. However, the instability of Ru-based catalysts in the OER is a central hurdle limiting their widespread application. This review focuses on recent developments made in the field of Ru-based OER catalysts. In the coverage, first the characteristics of Ru-based OER catalysts such as the OER mechanism, intrinsic activity and stability issue are discussed. Then, recently reported Ru-related catalysts falling in the Ru metal and Ru compound subclasses are described with special emphasis being given to a discussion of activity/stability-enhancing strategies. Finally, several challenges and future perspectives in this field are summarized. It is anticipated that this review will promote a better understanding of Ru-based OER catalysts and lead to new strategies to design active and stable Ru-materials.

Graphical abstract: Recent advances in Ru-based electrocatalysts for oxygen evolution reaction

Article information

Article type
Review Article
Submitted
13 Sept. 2022
Accepted
19 Dec. 2022
First published
29 Dec. 2022

J. Mater. Chem. A, 2023,11, 1634-1650

Recent advances in Ru-based electrocatalysts for oxygen evolution reaction

J. Ying, J. Chen, Y. Xiao, S. I. Cordoba de Torresi, K. I. Ozoemena and X. Yang, J. Mater. Chem. A, 2023, 11, 1634 DOI: 10.1039/D2TA07196G

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