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
Abstract
Read online
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.
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