Effect of annealing treatment on hydrogen storage properties of La-Ti-Mg-Ni-based alloy

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	Effect of annealing treatment on hydrogen storage properties of La-Ti-Mg-Ni-based alloy
	W. Q. Jiang; X. H. Mo; Y. Y. Wei; Z. C. Zhou; J. Guo
	2012
发表期刊	Journal of Rare Earths
ISSN	1002-0721
卷号	30 期号:5 页码:450-455
摘要	The present study dealt with investigations on the effects of annealing on the hydrogen storage properties of La1.6Ti0.4MgNi9 alloys. The experimental alloys were prepared by magnetic levitation melting followed by annealing treatment. For La1.6Ti0.4MgNi9 alloys, LaNi5, LaNi3 and LaMg2Ni9 were the main phases, Ti2Ni phase appeared at 900 degrees C. Annealing not only enhanced the maximum and effective hydrogen storage capacity, improved the hydrogen absorption/desorption kinetics, but also increased the discharge capacity. The cyclic stability had been improved markedly by annealing, e.g., when the discharge capacity reduced to 60% of maximum discharge capacity, the charge/discharge cycles increased from 66 (as-cast) to 89 (annealed at 800 degrees C) and 127 times (annealed at 900 degrees C). La1.6Ti0.4MgNi9 alloy annealed at 900 degrees C exhibited better electrochemical properties compared to the other two alloy electrodes.
部门归属	[jiang weiqing; wei yinyan; zhou zhengcheng; guo jin] guangxi univ, coll phys sci & technol, key lab, natl educ minist nonferrous met & mat proc techno, nanning 530004, peoples r china. [mo xiaohua] guangxi univ nationalities, coll phys & elect engn, nanning 530006, peoples r china. [guo jin] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;jiang, wq (reprint author), guangxi univ, coll phys sci & technol, key lab, natl educ minist nonferrous met & mat proc techno, nanning 530004, peoples r china.;wqjiang@gxu.edu.cn; guojin@gxu.edu.cn
关键词	La-ti-mg-ni-based Hydrogen Storage Property Annealing Electrochemical Performance Rare Earths Electrochemical Properties Electrode Alloy Metal-hydrides Performance Co Temperature Capacity System Al
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60026
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Q. Jiang,X. H. Mo,Y. Y. Wei,et al. Effect of annealing treatment on hydrogen storage properties of La-Ti-Mg-Ni-based alloy[J]. Journal of Rare Earths,2012,30(5):450-455.
APA	W. Q. Jiang,X. H. Mo,Y. Y. Wei,Z. C. Zhou,&J. Guo.(2012).Effect of annealing treatment on hydrogen storage properties of La-Ti-Mg-Ni-based alloy.Journal of Rare Earths,30(5),450-455.
MLA	W. Q. Jiang,et al."Effect of annealing treatment on hydrogen storage properties of La-Ti-Mg-Ni-based alloy".Journal of Rare Earths 30.5(2012):450-455.