Mesoporous Regulated Co9S8/Ni3S2 Composite Electrode Materials and Electrocatalytic Hydrogen Evolution Performance

doi:10.11862/CJIC.2021.223

CORC > 兰州理工大学 > 兰州理工大学

	Mesoporous Regulated Co9S8/Ni3S2 Composite Electrode Materials and Electrocatalytic Hydrogen Evolution Performance
	Zhou Qi 1,2; Li Xin-Bao 2; Jiao Sun-Zhi 2
刊名	CHINESE JOURNAL OF INORGANIC CHEMISTRY
	2021-11
卷号	37 期号:11 页码:1970-1980
关键词	nano structure composite electrode mesoporous structure electrochemistry hydrogen evolution reaction
ISSN号	1001-4861
DOI	10.11862/CJIC.2021.223
英文摘要	The nano-porous Ni-Co alloy was prepared by rapid solidification and dealloying. After vapor deposition of sulfur and hot hydrogen reduction, nano-porous Co9S8/Ni3S2 composite electrode materials with surface mesoporous were prepared. The results showed that sulfur atoms and Ni-Co alloys lormed Co9S8/Ni3S2 composite phases in situ, and after thermal hydrogen reduction, Co9S8/Ni3S2 composite phase with a low sulfur atom ratio was formed. This thermal hydrogen reduction process not only increases the electron density around the Co,SINi,S, elements, but also modulates heterogeneous interface with mesoporous structure, which improves the electron transport capacity and increases the active surface area. Compared with other Ni and Co sulfides that were prepared under the same condition, Co9S8/Ni3S2 had better hydrogen evolution reaction (HER) activity. When current density was 50 mA.cm(-2), the hydrogen evolution overpotential of Co9S8/Ni3S2 was 234 mV, and Tafel slope was 106 mV.dec(-1). After stabilization test, the voltage changed only 14 mV.
WOS研究方向	Chemistry
语种	中文
出版者	CHINESE CHEMICAL SOC
WOS记录号	WOS:000717503900007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150037]
专题	兰州理工大学
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Coll Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhou Qi,Li Xin-Bao,Jiao Sun-Zhi. Mesoporous Regulated Co9S8/Ni3S2 Composite Electrode Materials and Electrocatalytic Hydrogen Evolution Performance[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2021,37(11):1970-1980.
APA	Zhou Qi,Li Xin-Bao,&Jiao Sun-Zhi.(2021).Mesoporous Regulated Co9S8/Ni3S2 Composite Electrode Materials and Electrocatalytic Hydrogen Evolution Performance.CHINESE JOURNAL OF INORGANIC CHEMISTRY,37(11),1970-1980.
MLA	Zhou Qi,et al."Mesoporous Regulated Co9S8/Ni3S2 Composite Electrode Materials and Electrocatalytic Hydrogen Evolution Performance".CHINESE JOURNAL OF INORGANIC CHEMISTRY 37.11(2021):1970-1980.