Phase Structure and Electrochemical Performances of La0.63Gd0.2Mg0.17Ni3.0-xCo0.3Alx (x=0.0, 0.1, 0.2, 0.3, 0.4) Alloys

doi:10.20964/2019.09.35

	Phase Structure and Electrochemical Performances of La0.63Gd0.2Mg0.17Ni3.0-xCo0.3Alx (x=0.0, 0.1, 0.2, 0.3, 0.4) Alloys
	Gao, Zhijie 1; Luo, Yongchun2
	2019-09
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	14 期号:9 页码:8382-8392
摘要	The influences of Al substitution for Ni on the phase abundance, structures and electrochemical properties of La0.63Gd0.2Mg0.17Ni3.0-xCo0.3Alx (x = 0.0, 0.1, 0.2, 0.3, 0.4) alloys have been investigated. The main phase of Al-free base alloy is Ce2Ni7-type phase, Gd2Co7-type phase and CeNi3-type phase. After a little Al substitution, AB(3) phase shifts to A(2)B(7) phase. Further Al addition promotes the formation of CaCus-type phase over the A(2)B(7)-type phase. The sample of x = 0.1 (AB(3) to A(2)B(7)) increases cycling stability and its discharge capacity almost unchanged. The further addition of Al (A(2)B(7)( )to CaCus) still increases cycling stability, but decreases the maximum discharge capacity and high rate dischargeability. The substitution of Al elements increases the phase abundance of A(2)B(7)-type or CaCus-type so as to improve the cycling stability. The ability of phase pulverization resistance of the metal hydride alloy at the negative electrode appeared to be the intrinsic reason of failure mode of this series of alloys.
关键词	La-Mg-Ni-based hydrogen storage alloy Al substitution Microstructure Electrochemical properties
DOI	10.20964/2019.09.35
收录类别	SCI ; SCIE
语种	英语
资助项目	NSFC (Natural Science Foundation of China)[51404220]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000483307100003
出版者	ESG
引用统计	被引频次：3[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/31604
专题	材料科学与工程学院
通讯作者	Gao, Zhijie; Luo, Yongchun
作者单位	1.Binzhou Univ, Dept Chem Engn & Safety, Binzhou 256600, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
通讯作者单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Gao, Zhijie,Luo, Yongchun. Phase Structure and Electrochemical Performances of La0.63Gd0.2Mg0.17Ni3.0-xCo0.3Alx (x=0.0, 0.1, 0.2, 0.3, 0.4) Alloys[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2019,14(9):8382-8392.
APA	Gao, Zhijie,&Luo, Yongchun.(2019).Phase Structure and Electrochemical Performances of La0.63Gd0.2Mg0.17Ni3.0-xCo0.3Alx (x=0.0, 0.1, 0.2, 0.3, 0.4) Alloys.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,14(9),8382-8392.
MLA	Gao, Zhijie,et al."Phase Structure and Electrochemical Performances of La0.63Gd0.2Mg0.17Ni3.0-xCo0.3Alx (x=0.0, 0.1, 0.2, 0.3, 0.4) Alloys".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 14.9(2019):8382-8392.

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