Preparation of Ni-Co/RuO2 Composite Electrode and Electrocatalytic Activity for Hydrogen Evolution

doi:10.11862/CJIC.2019.258

CORC > 兰州理工大学 > 兰州理工大学

	Preparation of Ni-Co/RuO2 Composite Electrode and Electrocatalytic Activity for Hydrogen Evolution
	Zhou Qi 1,2; Duan De-Dong 1; Feng Ji-Wei 1
刊名	CHINESE JOURNAL OF INORGANIC CHEMISTRY
	2019-12-01
卷号	35 期号:12 页码:2301-2310
关键词	de -alloying Ni-Co/RuO2 composite electrode electrocatalytic hydrogen evolution
ISSN号	1001-4861
DOI	10.11862/CJIC.2019.258
英文摘要	Nanoporous Ni, Co and Ni-Co alloys were prepared by rapid solidification combined with de -alloying. The surface of Ni-Co alloy was modified by RuO2. The phase analysis and morphology of porous materials were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS),scanning electron microscope (SEM) and transmission electron microscope (TEM). The electrocatalytic hydrogen evolution performance of the porous electrode was tested by linear sweep voltammetry, multi -potential step, alternating current impedance and potentiostatic electrolysis. The results show that the Ni-Co/RuP2 composite electrode material has a hydrogen evolution overpotential of 180 mV at a current density of 50 mA .cm(-2). The hydrogen evolution process was controlled by the Volmer-Heyrovsky step, and the exchange current density was 4.42 mA . cm(-2). Compared with nanoporous Ni, nanoporous Co and nanoporous Ni-Co alloy, Ni-Co/RuO2 composite electrode had the lowest apparent activation energy during hydrogen evolution. After 10 h constant current electrolysis, the potential only increased by 20 mV, showing excellent hydrogen evolution stability.
WOS研究方向	Chemistry
语种	中文
出版者	CHINESE CHEMICAL SOC
WOS记录号	WOS:000506945100014
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155284]
专题	兰州理工大学
作者单位	1.Lanzhou Univ Technol, Coll Mat Sci & Engn, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Zhou Qi,Duan De-Dong,Feng Ji-Wei. Preparation of Ni-Co/RuO2 Composite Electrode and Electrocatalytic Activity for Hydrogen Evolution[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2019,35(12):2301-2310.
APA	Zhou Qi,Duan De-Dong,&Feng Ji-Wei.(2019).Preparation of Ni-Co/RuO2 Composite Electrode and Electrocatalytic Activity for Hydrogen Evolution.CHINESE JOURNAL OF INORGANIC CHEMISTRY,35(12),2301-2310.
MLA	Zhou Qi,et al."Preparation of Ni-Co/RuO2 Composite Electrode and Electrocatalytic Activity for Hydrogen Evolution".CHINESE JOURNAL OF INORGANIC CHEMISTRY 35.12(2019):2301-2310.