Mechanically milled alanates as hydrogen storage materials

被引：12
|
作者：
Genma, R
Okada, N
Sobue, T
Uchida, HH
机构：
[1] Tokai Univ, Dept Human Dev, Hiratsuka, Kanagawa 2591292, Japan
[2] Tokai Univ, Dept Mat Sci, Hiratsuka, Kanagawa 2591292, Japan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2006年 / 31卷 / 02期
关键词：
alanates; mechanical milling; hydrogen storage;
D O I：
10.1016/j.ijhydene.2005.04.040
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：
Hydrogen absorption kinetics of Na-Li-Al-H-based samples with different alkali/Al ratio prepared by mechanical milling was investigated. Na2LiAlH6 phase can be obtained even if the initial composition is out of stoichiometry. Rather higher hydrogen absorption rate was observed for the sample of alkali/Al = 2 sample compared to alkali/Al = 3 sample. This improved kinetics was interpreted by pressure dependence of initial reaction rate indicating the absorption process had changed to different rate-determining step. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：309 / 311
页数：3
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