Jing Zhang, Junjie Dong, Zhaolong Li, Jin Zhang, Zhiyuan Ma
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引用次数: 0
Abstract
Transition metal silicate hydroxides (NFSO) have shown to be stable catalysts for electrocatalytic oxygen evolution reaction (OER) in alkaline environments. However, their catalytic activity is not satisfactory. In this work, we report the high OER performance of amorphous Ni-Fe-Si-B-O (NFSO-Bx) nanosheets catalyst synthesized by a simple coprecipitation method. Compared to traditional NFSO, the incorporation of B changes the electronic structure of NFSO and significantly enhances its activity. The optimum sample NFSO-B1 exhibits an overpotential of 255 mV at 10 mA cm− 2, which is 69 mV lower than that of undoped NFSO, and it is durable against 24 h of chronopotentiometry test and 1000 CV cycles. More importantly, the NFSO-B1 catalyst outperforms NiFe-LDH and the benchmark commercial RuO2 catalysts in OER activity, demonstrating great potential for commercial application.
期刊介绍：
Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.
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