From the journal:

Chemical Communications

Understanding alkali cation regulation of oxygen evolution on nickel (oxy)hydroxide

Yi Wei, ORCID logo a   Ling Li,a   Miao Fan,a   Jinyan Xiong,b   Weijie Li ORCID logo c  and  Chao Han ORCID logo *a  

* Corresponding authors

a School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China
E-mail: chaohan@csu.edu.cn

b College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, P. R. China

c Powder Metallurgy Research Institute, Central South University, Changsha 410083, P. R. China

Abstract

The OER performance of nickel (oxy)hydroxide strongly depends on the electrolyte cations. Here, we reveal a clear activity order of KOH > NaOH > LiOH with decreasing activation energies. Larger cations promote *OH adsorption and Ni2+ oxidation, weakening the Ni–O bonds and lowering the reaction barriers, improving the OER performance.

Graphical abstract: Understanding alkali cation regulation of oxygen evolution on nickel (oxy)hydroxide

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Article information

DOI
https://doi.org/10.1039/D6CC01254J
Article type
Communication
Submitted
28 Feb 2026
Accepted
14 Apr 2026
First published
15 Apr 2026

Chem. Commun., 2026, Advance Article

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Understanding alkali cation regulation of oxygen evolution on nickel (oxy)hydroxide

Y. Wei, L. Li, M. Fan, J. Xiong, W. Li and C. Han, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D6CC01254J

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