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Corresponding Author

Ke-Xin Zhang(zhky@jlu.edu.cn);
Xiao-Xin Zou(xxzou@jlu.edu.cn)

Abstract

The development of energy conversion/storage technologies can achieve the reliable and stable renewable energy supply, and bring us a sustainable future. As the core half-reaction of many energy-related systems, water oxidation is the bottleneck due to its sluggish kinetics of the four-concerted proton-electron transfer (CPET) process. This necessitates the exploitation of low cost, highly active and stable water oxidation electrocatalysts. Perovskite-type oxides possess diverse crystal structures, flexible compositions and unique electronic properties, enabling them ideal material platform for the optimization of catalytic performance. In this review, we provide a comprehensive summary for the crystal structures, electronic structures and synthetic methods of perovskite-type oxides in their application background of water oxidation electrocatalysis. Then, we summarize the recent research advances of perovskite-type water oxidation electrocatalysts in alkaline and acidic media, and highlight the significance of their structure-activity relationship and activation/deactivation mechanism. Finally, challenges and the corresponding solutions for the perovskite-type electrocatalysts are highlighted, which is expected to open the opportunities to their practical applications.

Graphical Abstract

Keywords

perovskite, water oxidation, electrocatalysis, water splitting, hydrogen energy

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Date

2022-09-28

Online Available Date

2022-08-23

Revised Date

2022-07-24

Received Date

2022-06-16

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