Investigation on the Structure and Electrochemical Properties of La-Ce-Mg-Al-Ni Hydrogen Storage Alloy

	Investigation on the Structure and Electrochemical Properties of La-Ce-Mg-Al-Ni Hydrogen Storage Alloy
	Qiao YQ ; Xi JY ; Zhao MS ; Shao GJ ; Luo YC ; Wang LM
刊名	journal of chemistry
	2013
页码	文献号: 627582
关键词	ELECTRODE ALLOYS PHASE-STRUCTURE CO SUBSTITUTION BATTERIES NICKEL MICROSTRUCTURE MECHANISM CAPACITY LAMG2NI9
ISSN号	2090-9063
通讯作者	qiao yq
中文摘要	structure and electrochemical characteristics of la0.96ce0.04mg0.15al0.05ni2.8 hydrogen storage alloy have been investigated. x-ray diffraction analyses reveal that the la0.96ce0.04mg0.15al0.05ni2.8 hydrogen storage alloy consisted of a (la, mg)ni-3 phase with the rhombohedral puni3-type structure and a lani5 phase with the hexagonal cacu5-type structure. tem shows that the alloy is multicrystal with a lattice space 0.187 nm. eds analyse shows that the content of mg is 3.48% (atom) which coincide well with the designed composition of the electrode alloy. electrochemical investigations show that the maximum discharge capacity of the alloy electrode is 325 mah g(-1). the alloy electrode has higher discharge capacity within the discharge current density span from 60 ma g(-1) to 300 ma g(-1). electrochemical impedance spectroscopy measurements indicate that the charge transfer resistance.. t on the alloy electrode surface and the calculated exchange current density i-0 are 0.135 omega and 1298 ma g(-1), respectively; the better eletrochemical reaction kinetic of the alloy electrode may be responsible for the better high-rate dischargeability.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000328775000001
公开日期	2014-04-16
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/50118]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Qiao YQ,Xi JY,Zhao MS,et al. Investigation on the Structure and Electrochemical Properties of La-Ce-Mg-Al-Ni Hydrogen Storage Alloy[J]. journal of chemistry,2013:文献号: 627582.
APA	Qiao YQ,Xi JY,Zhao MS,Shao GJ,Luo YC,&Wang LM.(2013).Investigation on the Structure and Electrochemical Properties of La-Ce-Mg-Al-Ni Hydrogen Storage Alloy.journal of chemistry,文献号: 627582.
MLA	Qiao YQ,et al."Investigation on the Structure and Electrochemical Properties of La-Ce-Mg-Al-Ni Hydrogen Storage Alloy".journal of chemistry (2013):文献号: 627582.