Improvement of hydrogen storage characteristics of Mg by planetary ball milling under H2 with metallic element(s) and/or Fe2O3

被引：5
作者：
Song, Myoung Youp [1 ]
Kwon, Sung Nam
Bobet, Jean-Louis [2 ]
Park, Hye Ryoung [3 ]
Mumm, Daniel R. [4 ]
机构：
[1] Chonbuk Natl Univ, Div Adv Mat Engn, Dept Hydrogen & Fuel Cells, Hydrogen & Fuel Cell Res Ctr,Engn Res Inst, Jeonju 561756, South Korea
[2] Univ Bordeaux 1, ICMCB, CNRS, UPR 9048, F-33608 Pessac, France
[3] Chonnam Natl Univ, Sch Appl Chem Engn, Kwangju 500757, South Korea
[4] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 05期
关键词：
H-2-storage properties of Mg; Reactive mechanical grinding; Fe2O3; Metallic element; Hydride-forming element; NI; SORPTION; MAGNESIUM; FE; COMPOSITE; MIXTURES; HYDRIDE; ALLOYS; NB2O5;
D O I：
10.1016/j.ijhydene.2010.12.059
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Among samples of Mg-Ni, Mg-Ni-5Fe(2)O(3),and Mg-Ni-5Fe, Mg-Ni-5Fe had the highest hydriding and dehydriding rates. For the as-milled Mg-Ni-5Fe alloy and the hydrided Mg-Ni-5Fe alloy after activation, the weight percentages of the constituent phases were calculated using the FullProf program. The creation of defects and the diminution of Mg particle size through reactive mechanical grinding and hydriding dehydriding cycling, and the formation of the Mg2Ni phase are considered to increase the hydriding and dehydriding rates. Mg-14Ni-2Fe-2Ti-2Mo had higher hydriding and dehydriding rates than did any of the other samples (Mg-Ni, Mg-Ni-5Fe(2)O(3), Mg-Ni-5Fe, and Mg-14Ni-6Fe(2)O(3)) prepared in this work. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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页码：3521 / 3528
页数：8
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