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

Matsunaga, Tomoya; Kon, M.; Washio, K.; Shinozawa, T.; Ishikiriyama, M.

doi:10.1016/j.ijhydene.2008.11.061

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Journal article

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

Matsunaga, Tomoya Advanced Material Engineering Division, Higashifuji Technical Center, Toyota Motor Corporation, Shizuoka, Japan - Physics Department, University of Fribourg, Switzerland
Kon, M. Advanced Material Engineering Division, Higashifuji Technical Center, Toyota Motor Corporation, Shizuoka, Japan
Washio, K. Advanced Material Engineering Division, Higashifuji Technical Center, Toyota Motor Corporation, Shizuoka, Japan
Shinozawa, T. Advanced Material Engineering Division, Higashifuji Technical Center, Toyota Motor Corporation, Shizuoka, Japan
Ishikiriyama, M. Advanced Material Engineering Division, Higashifuji Technical Center, Toyota Motor Corporation, Shizuoka, Japan

23.12.2008

Published in:

International Journal of Hydrogen Energy. - 2009, vol. 34, no. 3, p. 1458-1462

English 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.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language