Issue 19, 2023

Regulation engineering of the surface and structure of perovskite-based electrocatalysts for the oxygen evolution reaction

Abstract

Perovskite oxides of low cost and with an adjustable structure have been widely used as electrocatalysts for the oxygen evolution reaction (OER). However, most perovskite oxides have inherent barriers of low catalytic activity and poor electrical conductivity. The reaction at the active site and the adsorption/desorption of the reactants are carried out more efficiently on the catalyst surface. In order to regulate the surface and structure of a catalyst to improve the catalytic activity of perovskite oxides in the OER, many strategies have been explored. In this paper, the descriptor of catalytic activity of perovskite oxides is described. The oxygen evolution mechanisms (the adsorbate evolution mechanism, AEM, and lattice oxygen evolution mechanism, LOM) and the regulation mode between AEM and LOM have been deeply analyzed to guide the design of high performing catalysts for the OER. The research progress of perovskite oxide catalysts in recent years in terms of surface composition, design morphology control and defect engineering is reviewed systematically. In particular, the Ir/Ru perovskite in acidic media that can be used in a proton exchange membrane water electrolyser (PEMWE) is discussed in detail. Finally, the existing problems of perovskite oxide based electrocatalysts and their prospects for practical applications in the OER are presented.

Graphical abstract: Regulation engineering of the surface and structure of perovskite-based electrocatalysts for the oxygen evolution reaction

Article information

Article type
Review Article
Submitted
23 4 2023
Accepted
28 5 2023
First published
13 6 2023

Mater. Chem. Front., 2023,7, 4236-4258

Regulation engineering of the surface and structure of perovskite-based electrocatalysts for the oxygen evolution reaction

N. Yu, Z. Zhang, Y. Chai and B. Dong, Mater. Chem. Front., 2023, 7, 4236 DOI: 10.1039/D3QM00438D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements