TiCrVMo alloys with high dissociation pressure for high-pressure MH tank

被引：48

作者：

Matsunaga, T. ^{[1
,2
]}

Kon, M. ^{[1
]}

Washio, K. ^{[1
]}

Shinozawa, T. ^{[1
]}

Ishikiriyama, M. ^{[1
]}

机构：

[1] Toyota Motor Co Ltd, Adv Mat Engn Div, Higashifuji Tech Ctr, Shizuoka 4101193, Japan

[2] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2009年 / 34卷 / 03期

关键词：

Metal hydrides; Bcc alloys; Thermodynamic properties; PC isotherms; HYDROGEN STORAGE PROPERTIES; SOLID-SOLUTION ALLOYS; CR-V ALLOYS; ABSORPTION PROPERTIES; HYDRIDES;

D O I：

10.1016/j.ijhydene.2008.11.061

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：

High-pressure metal hydride (MH) tank is a possible hydrogen storage system for fuel cell vehicles. The merit of the high-pressure MH tank system is improved by the use of a metal hydride with high dissociation pressure. In this study, TiCrV and TiCrVMo alloys with BCC structure has been developed for the high-pressure MH tank system. The developed TiCrVMo alloy shows 2.4 mass% of effective hydrogen capacity between 0.1 MPa and 33 MPa at 298 K, which has a dissociation pressure of 2.3 MPa at 298 K. By investigating the dissociation pressures of the synthesized metal hydrides, it is found that Mo has a special effect to increase dissociation pressure of the metal hydrides. This effect is probably attributed to the large bulk modulus of Mo compared to other elements. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：1458 / 1462

页数：5

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