Hydrogen-storage properties of Mg-23.5Ni-(0 and 5)Cu prepared by melt spinning and crystallization heat treatment

被引：71

作者：

Song, Myoung Youp ^{[2
]}

Kwon, Sung Nam ^{[2
]}

Bae, Jong-Soo ^{[1
]}

Hong, Seong-Hyeon ^{[1
]}

机构：

[1] Korea Inst Machinery & Mat, KIMS, Dept Power Mat Res, Chang Won 641010, Gyeongnam, South Korea

[2] Chonbuk Natl Univ, Engn Res Inst, Res Ctr Adv Mat Dev, Div Adv Mat Engn, Jeonju 561756, South Korea

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 06期

关键词：

hydrogen storage; melt spinning; cystallization heat treatment; Mg-23.5Ni-5Cu alloy; hydriding and dehydriding rates;

D O I：

10.1016/j.ijhydene.2008.01.006

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-23.5 wt% Ni and Mg-23.5 wt% Ni-5 wt% Cu alloys for hydrogen storage were prepared by melt spinning and crystallization heat treatment. The alloys were ground by a planetary ball mill for 2 h in order to obtain a fine powder. The activated Mg-23.5Ni and Mg-23.5Ni-5Cu alloys absorbed 4.34 and 4.84 wt% H, respectively, at 573 K under 12 bar H-2 for 60 min. The activated Mg-23.5Ni and Mg-23.5Ni-5Cu alloys desorbed 4.27 and 4.81 wt% H, respectively, at 573 K under 1.0 bar H-2 for 30 min. The hydriding rates of the alloys are quite high, even at 473 K, while the dehydriding rates of the samples at 473 K are nearly zero. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：1711 / 1718

页数：8

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