A Hierarchical CuO Nanowire@CoFe-Layered Double Hydroxide Nanosheet Array as a High-Efficiency Seawater Oxidation Electrocatalyst

Xiya Yang; Xun He; Lang He; Jie Chen; Longcheng Zhang; Qian Liu; Zhengwei Cai; Chaoxin Yang; Shengjun Sun; Dongdong Zheng; Asmaa Farouk; Mohamed S. Hamdy; Zhaogang Ren; Xuping Sun

doi:10.3390/molecules28155718

Molecules (Jul 2023)

A Hierarchical CuO Nanowire@CoFe-Layered Double Hydroxide Nanosheet Array as a High-Efficiency Seawater Oxidation Electrocatalyst

Xiya Yang,
Xun He,
Lang He,
Jie Chen,
Longcheng Zhang,
Qian Liu,
Zhengwei Cai,
Chaoxin Yang,
Shengjun Sun,
Dongdong Zheng,
Asmaa Farouk,
Mohamed S. Hamdy,
Zhaogang Ren,
Xuping Sun

Affiliations

Xiya Yang: College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
Xun He: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Lang He: College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
Jie Chen: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Longcheng Zhang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Qian Liu: Institute for Advanced Study, Chengdu University, Chengdu 610106, China
Zhengwei Cai: College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
Chaoxin Yang: College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
Shengjun Sun: College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
Dongdong Zheng: College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
Asmaa Farouk: Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
Mohamed S. Hamdy: Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
Zhaogang Ren: College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
Xuping Sun: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China

DOI: https://doi.org/10.3390/molecules28155718
Journal volume & issue: Vol. 28, no. 15
p. 5718

Abstract

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Seawater electrolysis has great potential to generate clean hydrogen energy, but it is a formidable challenge. In this study, we report CoFe-LDH nanosheet uniformly decorated on a CuO nanowire array on Cu foam (CuO@CoFe-LDH/CF) for seawater oxidation. Such CuO@CoFe-LDH/CF exhibits high oxygen evolution reaction electrocatalytic activity, demanding only an overpotential of 336 mV to generate a current density of 100 mA cm−2 in alkaline seawater. Moreover, it can operate continuously for at least 50 h without obvious activity attenuation.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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