Dehydrogenation and hydrogenation characteristics of MgH2 with transition metal fluorides

被引：184

作者：

Jin, Seon-Ah

Shim, Jae-Hyeok

Cho, Young Whan ^{[1
]}

Yi, Kyung-Woo

机构：

[1] Korea Inst Sci & Technol, Mat Sci & Technol Res Div, Seoul 136791, South Korea

[2] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea

来源：

JOURNAL OF POWER SOURCES | 2007年 / 172卷 / 02期

关键词：

hydrogen storage; magnesium hydride; transition metal fluoride; ball milling; catalysis; reaction kinetics;

D O I：

10.1016/j.jpowsour.2007.04.090

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：

The effect of transition metal fluorides on the dehydrogenation and hydrogenation of MgH2 has been investigated. Many of the fluorides show a considerable catalytic effect on both the dehydrogenation temperature and hydrogenation kinetics of MgH2. Among them, NbF5 and TiF3 Most significantly enhance the hydrogenation kinetics of MgH2. It is suggested that hydride phases formed by the reaction between MgH2 and these transition metal fluorides during milling and/or hydrogenation play a key role in improving the hydrogenation kinetics of MgH2 (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：859 / 862

页数：4

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