From the journal:

Chemical Communications

CeO2 promotes oxygen vacancy generation in Co(OH)2 for enhanced water oxidation

Zidong He,a   Zhaori Mu,a   Peiqiong Li,a   Yana Liu,a   Yunxiang Zhang,a   Wei Shen, ORCID logo a   Pinxian Xi ORCID logo *a  and  Chun-Hua Yanab  

* Corresponding authors

a State Key Laboratory of Natural Product Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Frontiers Science Center for Rare Isotopes, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
E-mail: xipx@lzu.edu.cn

b Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Abstract

A comparative study of CeO2-decorated Co(OH)2 and CoOOH highlights the critical role of substrate dynamics. Operando spectroscopic studies reveal that the interface derived from Co(OH)2 efficiently stabilizes oxygen vacancies. Such vacancy stabilization promotes the formation of high-valent CoO2 species, thereby enhancing oxygen evolution performance.

Graphical abstract: CeO2 promotes oxygen vacancy generation in Co(OH)2 for enhanced water oxidation

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Article information

DOI
https://doi.org/10.1039/D5CC06154G
Article type
Communication
Submitted
29 Oct 2025
Accepted
08 Dec 2025
First published
09 Dec 2025

Chem. Commun., 2026, Advance Article

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CeO2 promotes oxygen vacancy generation in Co(OH)2 for enhanced water oxidation

Z. He, Z. Mu, P. Li, Y. Liu, Y. Zhang, W. Shen, P. Xi and C. Yan, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D5CC06154G

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