一种分级结构的氧化铜纳米线@钴铁层状双氢氧化物纳米片阵列作为高效海水氧化电催化剂。
A Hierarchical CuO Nanowire@CoFe-Layered Double Hydroxide Nanosheet Array as a High-Efficiency Seawater Oxidation Electrocatalyst.
作者信息
Yang Xiya, He Xun, He Lang, Chen Jie, Zhang Longcheng, Liu Qian, Cai Zhengwei, Yang Chaoxin, Sun Shengjun, Zheng Dongdong, Farouk Asmaa, Hamdy Mohamed S, Ren Zhaogang, Sun Xuping
机构信息
College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
出版信息
Molecules. 2023 Jul 28;28(15):5718. doi: 10.3390/molecules28155718.
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 in alkaline seawater. Moreover, it can operate continuously for at least 50 h without obvious activity attenuation.
海水电解在产生清洁氢能方面具有巨大潜力，但这是一项艰巨的挑战。在本研究中，我们报道了一种均匀装饰在泡沫铜上的氧化铜纳米线阵列（CuO@CoFe-LDH/CF）上的CoFe-LDH纳米片用于海水氧化。这种CuO@CoFe-LDH/CF表现出高析氧反应电催化活性，在碱性海水中仅需336 mV的过电位就能产生100 mA cm的电流密度。此外，它可以连续运行至少50小时而无明显活性衰减。
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