Preparation of Mg-23.5Ni-10(Cu or La) hydrogen-storage alloys by melt spinning and crystallization heat treatment

被引：41
|
作者：
Song, MyoungYoup [2 ]
Yim, Chang-Dong [3 ]
Kwon, SungNam [4 ]
Bae, Jong-Soo [1 ]
Hong, Seong-Hyeon [1 ]
机构：
[1] Korea Inst Machinery & Mat, Powder Mat Res Ctr, Chang Won 641010, Kyungnam, South Korea
[2] Chonbuk Natl Univ, Engn Res Inst, Res Ctr Adv Mat Dev, Div Adv Mat Engn, Jeonju 561756, Chonbuk, South Korea
[3] Korea Inst Machinery & Mat, Adv Mat Res Div, Chang Won 641010, Kyungnam, South Korea
[4] Chonbuk Natl Univ, Grad Sch, Jeonju 561756, Chonbuk, South Korea
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 01期
关键词：
hydrogen storage alloy; magnesium alloy; hydriding; dehydriding; melt spinning; crystallization;
D O I：
10.1016/j.ijhydene.2007.09.018
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：
Mg-23.5wt%Ni-10wt%Cu and Mg-23.5wt%Ni-10wt%La alloys were prepared by melt spinning and crystallization heat-treatment. The Mg-23.5Ni-10Cu alloy (5.18 wt%) after planetary ball milling has a higher hydrogen-storage capacity than the Mg-23.5Ni-10La alloy (4.98 wt%) at 573 K. The activated Mg-23.5M-10Cu alloy has a slightly lower hydriding rate in the beginning, but a higher hydriding rate after about 5 min than the activated Mg-23.5Ni-10La alloy at 573 K. The activated Mg-23.5Ni-10Cu alloy has a much higher dehydriding rate and a larger quantity of the decomposed hydrogen than the activated Mg-23.5Ni-10La alloy at 573 K. (C) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：87 / 92
页数：6
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