Effect of Different Co contents on Structure of Nanoporous Ni-Co and Catalytic Performance of Hydrogen Evolution

doi:10.11862/CJIC.2019.215

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	Effect of Different Co contents on Structure of Nanoporous Ni-Co and Catalytic Performance of Hydrogen Evolution
	Feng Ji-Wei; Zhou Qi
刊名	CHINESE JOURNAL OF INORGANIC CHEMISTRY
	2019-10-10
卷号	35 期号:10 页码:1746-1754
关键词	dealloying nanoporous Ni-Co alloy hydrogen evolution performance
ISSN号	1001-4861
DOI	10.11862/CJIC.2019.215
英文摘要	Ni-Co-Al alloys with different Co contents were prepared by vacuum smelting and rapid solidification. XRD, SEM, TEM and N-2 adsorption-desorption were used on the structure characterization of nanoporous Ni-Co, and the hydrogen evolution performance of nanoporous Ni-Co/GCE electrode was tested by linear sweep voltammetry (LSV) and ac impedance(IMP). The results showed that there were smaller pores (5 similar to 10 nm) on the surface of the nanoporous Ni-Co alloy skeleton, and the catalytic performance of hydrogen evolution was better when the Co content was 40%similar to 60% (w/w). Among them, the pores of Ni2.5Co2.5 and Ni3Co2 are almost uniform, and they have smaller mesoporous pores than others, which is beneficial to the infiltration of electrolyte and increase the surface area of the electrode.Therefore, Ni2.5Co2.5/GCE and Ni3Co2/GCE have high hydrogen evolution performance. When the current density was -0.005 A . cm(-2), the hydrogen evolution potential of the two electrodes were almost the same as 380 mV.
WOS研究方向	Chemistry
语种	中文
出版者	CHINESE CHEMICAL SOC
WOS记录号	WOS:000497017100004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155316]
专题	兰州理工大学
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Feng Ji-Wei,Zhou Qi. Effect of Different Co contents on Structure of Nanoporous Ni-Co and Catalytic Performance of Hydrogen Evolution[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2019,35(10):1746-1754.
APA	Feng Ji-Wei,&Zhou Qi.(2019).Effect of Different Co contents on Structure of Nanoporous Ni-Co and Catalytic Performance of Hydrogen Evolution.CHINESE JOURNAL OF INORGANIC CHEMISTRY,35(10),1746-1754.
MLA	Feng Ji-Wei,et al."Effect of Different Co contents on Structure of Nanoporous Ni-Co and Catalytic Performance of Hydrogen Evolution".CHINESE JOURNAL OF INORGANIC CHEMISTRY 35.10(2019):1746-1754.