Sulfur species induced Fe3+ and Co3+ enrichment in a low-crystalline FeCoNi hydroxide boosts water oxidation

Kailu Guo; Yinjian Chen; Jinzhi Jia; Huijiao Wang; Cailing Xu

doi:10.1039/D5CC00724K

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Sulfur species induced Fe³⁺ and Co³⁺ enrichment in a low-crystalline FeCoNi hydroxide boosts water oxidation†

Kailu Guo,

*^a Yinjian Chen,

^a Jinzhi Jia,^b Huijiao Wang^b and Cailing Xu

*^b

Author affiliations

* Corresponding authors

^a College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
E-mail: guokailu@lynu.edu.cn

^b State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
E-mail: xucl@lzu.edu.cn

Abstract

A low-crystalline S-doped FeCoNi hydroxide is developed via a one-step electrodeposition method. The incorporation of S species changes the electronic properties of FeCoNi hydroxide, resulting in the enrichment of active Fe³⁺ and Co³⁺ sites, thereby achieving excellent performance for water oxidation in 1 M or realistic 30 wt% KOH solution.

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Article information

DOI: https://doi.org/10.1039/D5CC00724K
Article type: Communication
Submitted: 10 Feb 2025
Accepted: 02 Apr 2025
First published: 02 Apr 2025

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Chem. Commun., 2025,61, 6667-6670

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Sulfur species induced Fe³⁺ and Co³⁺ enrichment in a low-crystalline FeCoNi hydroxide boosts water oxidation

K. Guo, Y. Chen, J. Jia, H. Wang and C. Xu, Chem. Commun., 2025, 61, 6667 DOI: 10.1039/D5CC00724K

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Chemical Communications