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

Xiya YangXun HeLang HeJie ChenLongcheng Zhang Qian LiuZhengwei CaiChaoxin YangShengjun SunDongdong ZhengAsmaa FaroukMohamed S HamdyZhaogang RenXuping Sun

Published in: Molecules (Basel, Switzerland) (2023)

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.

Keyphrases

high efficiency
molecularly imprinted
cystic fibrosis
reduced graphene oxide
room temperature
hydrogen peroxide
metal organic framework
high resolution
high throughput
visible light
electron transfer
high density
gold nanoparticles
solid phase extraction
climate change