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

doi:10.11862/CJIC.2019.215

	Effect of Different Co contents on Structure of Nanoporous Ni-Co and Catalytic Performance of Hydrogen Evolution
	Feng Ji-Wei; Zhou Qi
	2019-10-10
发表期刊	CHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN	1001-4861
卷号	35 期号:10 页码:1746-1754
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.
关键词	dealloying nanoporous Ni-Co alloy hydrogen evolution performance
DOI	10.11862/CJIC.2019.215
收录类别	SCIE ; SCI
语种	中文
WOS研究方向	Chemistry
WOS类目	Chemistry, Inorganic & Nuclear
WOS记录号	WOS:000497017100004
出版者	CHINESE CHEMICAL SOC
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/155316
专题	兰州理工大学
通讯作者	Zhou Qi
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
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.