Synergistic effects of Gd and Co on the phase evolution mechanism and electrochemical performances of Ce2Ni7-type La-Mg-Ni-based alloys

doi:10.1039/c9dt03944a

	Synergistic effects of Gd and Co on the phase evolution mechanism and electrochemical performances of Ce2Ni7-type La-Mg-Ni-based alloys
	Gao, Zhijie 3,4; Geng, Yuhong 3; Lin, Zhen 5,6; Wei, Yongxiang 3; Luo, Yongchun 6; Li, Hai-Wen 1,2,4
刊名	Dalton Transactions
	2019
卷号	49 期号:1 页码:156-163
关键词	Electrochemical properties Lanthanum alloys Magnesium alloys CO substitution Cyclic stability Electrochemical performance Hydrogen absorption Mg Ni based alloy Partial replacement Phase evolutions Synergistic effect
ISSN号	14779226
DOI	10.1039/c9dt03944a
英文摘要	The influences of Gd and Co co-substitution for La and Ni on phase structures, and electrochemical properties of La0.83-xGdxMg0.17Ni3.35-2xCo2xAl0.15 (x = 0-0.83) alloys were investigated. All the alloys contained A2B7-type (Ce2Ni7- and Gd2Co7-type) phase, Pr5Co19-type phase, PuNi3-type phase and CaCu5-type phase. The partial replacement of Gd and Co for La and Ni increased the phase abundance of the Ce2Ni7-type superstructure and decreased cell volumes, which contributed to a better hydrogen absorption capacity, cyclic stability and HRD. Compared to those of single Gd- or Co-substitutions, the synergistic effects of Gd and Co on the overall electrochemical properties of alloys were significant. Such a superior overall electrochemical performance may result from appropriate cell volumes and anti-pulverization abilities. © 2019 The Royal Society of Chemistry.
WOS研究方向	Chemistry
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000507637400015
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114799]
专题	材料科学与工程学院
作者单位	1.Kyushu University Platform of Inter/Transdisciplinary Energy Research (Q-PIT), Kyushu University, Fukuoka; 819-0395, Japan 2.International Research Center for Hydrogen Energy, WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka; 819-0395, Japan; 3.Department of Chemical Engineering and Safety, Binzhou University, Binzhou; 256600, China; 4.International Research Center for Hydrogen Energy, Kyushu University, Fukuoka; 819-0395, Japan; 5.Xiamen Tungsten Company Limited, Xiamen; 3610026, China; 6.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Gao, Zhijie,Geng, Yuhong,Lin, Zhen,et al. Synergistic effects of Gd and Co on the phase evolution mechanism and electrochemical performances of Ce2Ni7-type La-Mg-Ni-based alloys[J]. Dalton Transactions,2019,49(1):156-163.
APA	Gao, Zhijie,Geng, Yuhong,Lin, Zhen,Wei, Yongxiang,Luo, Yongchun,&Li, Hai-Wen.(2019).Synergistic effects of Gd and Co on the phase evolution mechanism and electrochemical performances of Ce2Ni7-type La-Mg-Ni-based alloys.Dalton Transactions,49(1),156-163.
MLA	Gao, Zhijie,et al."Synergistic effects of Gd and Co on the phase evolution mechanism and electrochemical performances of Ce2Ni7-type La-Mg-Ni-based alloys".Dalton Transactions 49.1(2019):156-163.