Preparation of NiCoP/rGO/NF electrocatalyst by eletroless plating for efficient hydrogen evolution reaction

被引：0
|
作者：
Zhang Y. [1 ,2 ]
Xu H. [1 ]
Hu B. [1 ]
Shi X. [2 ]
机构：
[1] School of Petrochemical Engineering, Lanzhou University of Technology, Gansu, Lanzhou
[2] Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 08期
关键词：
catalyst; electrochemistry; electroless plating; hydrogen production; three-dimensional graphene; transition metal phosphide;
D O I：
10.16085/j.issn.1000-6613.2022-1846
中图分类号：
学科分类号：
摘要：
Electrochemical water splitting is an important green hydrogen technology. The development of efficient and cost-effective electrocatalyst is the focus of current research. A novel hydrogen evolution reaction (HER) electrocatalyst NiCoP/rGO/NF was constructed by electroless plating on nickel foam substrate that was loaded with three-dimensional reduced graphene oxide (rGO). The electrocatalysis performance of NiCoP/NF and that with the introduction of rGO (NiCoP/rGO/NF) was compared. The test results of the three-electrode system showed that, in 1mol/L KOH electrolyte and under the current density of 10mA/cm2, the NiCoP/rGO/NF electrode gave the highest overpotential of 98mV. The remarkable performance of NiCoP/rGO/NF electrode in HER might be the comprehensive result of fast reaction kinetics, large electrochemical active specific surface area (ECSA) and small reaction resistance (Rct) as indicated by the Tafel, cyclic voltammetry (CV) and impedance (EIS) analysis. The structure characterization confirmed that NiCoP was deposited uniformly on the surface of rGO and NF, and the three-dimensional network structure formed by rGO increased the catalyst surface area and exposed rich active edges. The formation of the Ni—P/Co—P bond in NiCoP/rGO/NF was key of HER performance improvement. © 2023 Chemical Industry Press. All rights reserved.
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页码：4275 / 4282
页数：7
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