Hydrogen storage properties of LaNi(3.8)Al(1.0)M(0.2) (M = Ni, Cu, Fe, Al, Cr, Mn) alloys

IMR OpenIR

	Hydrogen storage properties of LaNi(3.8)Al(1.0)M(0.2) (M = Ni, Cu, Fe, Al, Cr, Mn) alloys
	S. L. Li; P. Wang; W. Chen; G. Luo; D. M. Chen; K. Yang
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	485 期号:1-2 页码:867-871
摘要	The crystal structure, activation performance. hydrogen storage properties. thermodynamics, pulverization resistance and absorption/desorption kinetics of LaNi(13.8)Al(10)M(0.2) (M = Ni, Cu, Fe, Al, Cr, Mn) hydrogen storage alloys were investigated systemically The absorption/desorption pressure-composition (PC) isotherms and kinetics were measured at a temperature range of 413-493 K by the volumetric method It was found that all the investigated alloys showed CaCu(5) type of hexagonal structures and the partial substitution of M for Ni resulted in the increase of the unitcell volumes in an orderof Ni < Cu < Fe < Al < Cr < Mn The activation became easier with Cr substitution for partial Ni but a little harder for the Cu, Fe, Mn, Al contained alloys M elements decreased the absorption/desorption plateau pressure in an order of LaNi(4)Al > LaNi(3.8)Al(10)Cu(0.2) > LaNi(3.8)Al(10)Fe(0.2) > LaNi(3.8)Al(10)CrO(2) > LaNi(3.8)Al(10)Mn(0.2) > . There were linear relationships between plateau pressure and cell volume of tile investigated alloys The absolute values of the enthalpy for all the alloys were increased with M substituteJ for partial Ni. Al and Cu improved the pulverization resistance. The absorption kinetics was very fast while the necessary times taken by LaNi(3.8)Al(1.0)M(0.2) alloys to desorb 90% of their maximum hydrogen capacity were increased in an order of Ni < Cu < Fe < Al < Cr < Mn. (C) 2009 Elsevier B V All rights reserved
部门归属	[li, s. l.; chen, w.; luo, g.; chen, d. m.; yang, k.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [li, s. l.; chen, w.; luo, g.] chinese acad sci, grad sch, beijing 100049, peoples r china. [wang, p.] 404 ltd co, china natl nucl corp, lanzhou 732850, peoples r china.;chen, dm (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;demin.chen.1@imr.ac.cn
关键词	Metal Hydride Hydrogen Absorbing Materials Gas-solid Reactions Thermodynamic Properties Electrochemical Properties Thermodynamic Properties Structural-properties Hydrides Lani5 Absorption Intermetallics Electrodes Stability System
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32033
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. L. Li,P. Wang,W. Chen,et al. Hydrogen storage properties of LaNi(3.8)Al(1.0)M(0.2) (M = Ni, Cu, Fe, Al, Cr, Mn) alloys[J]. Journal of Alloys and Compounds,2009,485(1-2):867-871.
APA	S. L. Li,P. Wang,W. Chen,G. Luo,D. M. Chen,&K. Yang.(2009).Hydrogen storage properties of LaNi(3.8)Al(1.0)M(0.2) (M = Ni, Cu, Fe, Al, Cr, Mn) alloys.Journal of Alloys and Compounds,485(1-2),867-871.
MLA	S. L. Li,et al."Hydrogen storage properties of LaNi(3.8)Al(1.0)M(0.2) (M = Ni, Cu, Fe, Al, Cr, Mn) alloys".Journal of Alloys and Compounds 485.1-2(2009):867-871.