Hierarchical CoS2@NiFe-LDH as an efficient electrocatalyst for alkaline seawater oxidation

Xuefeng Zhang; Zixiao Li; Zhengwei Cai; Jun Li; Longcheng Zhang; Dongdong Zheng; Yongsong Luo; Shengjun Sun; Qian Liu; Bo Tang; Yingchun Yang; Huiqing Wang; Xuping Sun

doi:10.1039/D3CC03457G

Hierarchical CoS₂@NiFe-LDH as an efficient electrocatalyst for alkaline seawater oxidation†

Xuefeng Zhang,^a Zixiao Li,^b Zhengwei Cai,^c Jun Li,^b Longcheng Zhang,

^b Dongdong Zheng,^c Yongsong Luo,^b Shengjun Sun,^c Qian Liu,^d Bo Tang,

^ce Yingchun Yang,

*^a Huiqing Wang*^f and Xuping Sun

*^bc

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* Corresponding authors

^a College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, Sichuan, China
E-mail: yangyingchun@cuit.edu.cn

^b Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
E-mail: xpsun@uestc.edu.cn, xpsun@sdnu.edu.cn

^c College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China

^d Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China

^e Laoshan Laboratory, Qingdao 266237, Shandong, China

^f Medical Simulation Centre, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
E-mail: wanghuiqing@scu.edu.cn

Abstract

Developing earth-abundant non-noble electrocatalysts with high performance is significant but challenging for the oxygen evolution reaction (OER) in seawater. Herein, a hierarchical electrocatalyst, NiFe-layered double hydroxide (LDH) nanosheet anchored CoS₂ nanowires supported on carbon cloth, is developed for efficient OER electrocatalysis in alkaline seawater, demanding a low overpotential of 256 mV to drive a current density of 100 mA cm⁻², along with favorable catalytic durability for at least 48 h with negligible decay.

This article is part of the themed collection: Celebrating the scientific accomplishments of RSC Fellows

Chemical Communications

Hierarchical CoS₂@NiFe-LDH as an efficient electrocatalyst for alkaline seawater oxidation†

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