A hierarchical CoSx/Ni(OH)2 heterostructure as a bifunctional electrocatalyst for urea-assisted energy-efficient hydrogen production

Bin Sang; Chaozhuang Xue; Songyun Guo; Xiaojun Wng; Shuixiang Xie; Changming Wang; Rui-Qing Li

doi:10.1039/D4CC01253D

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A hierarchical CoS_x/Ni(OH)₂ heterostructure as a bifunctional electrocatalyst for urea-assisted energy-efficient hydrogen production†

Bin Sang,^a Chaozhuang Xue,

^a Songyun Guo,^b Xiaojun Wng,^b Shuixiang Xie,^b Changming Wang^b and Rui-Qing Li

*^b

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China

^b School of Textile and Clothing, Nantong University, Nantong 226019, China
E-mail: liruiqing@ntu.edu.cn

Abstract

We report hierarchical CoS_x/Ni(OH)₂/NF heterostructure nanorod arrays, which manifest superior bifunctional catalytic activities for the HER and UOR due to amorphous Ni(OH)₂, synergistic effect of multiple components and self-supported structure. The CoS_x/Ni(OH)₂/NF-based urea electrolyzer requires a low cell voltage of 1.485 V to deliver 10 mA cm⁻², which is obviously lower than that needed in water electrolysis.

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Article information

DOI: https://doi.org/10.1039/D4CC01253D
Article type: Communication
Submitted: 18 Mar 2024
Accepted: 23 May 2024
First published: 28 May 2024

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Chem. Commun., 2024,60, 6643-6646

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A hierarchical CoS_x/Ni(OH)₂ heterostructure as a bifunctional electrocatalyst for urea-assisted energy-efficient hydrogen production

B. Sang, C. Xue, S. Guo, X. Wng, S. Xie, C. Wang and R. Li, Chem. Commun., 2024, 60, 6643 DOI: 10.1039/D4CC01253D

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Chemical Communications