| 研究実績の概要 |
Experiments using the high-pressure torsion (HPT) method in combination with first-principles calculations were employed to design and synthesize a Mg-based alloy with low hydrogen binding energy. The material (Mg4NiPd with BCC-based structure) could reversibly store hydrogen at room temperature with an excellent consistency with the theoretical binding energy calculation. Several other Mg-based alloys (Mg-V-Sn, Mg-V-Pd, Mg-V-Ni, Mg-Ni-Sn and Mg-Ni-Pd) were also synthesized for the first time by the HPT method, but their hydrogen storage behavior is still under investigation.
|
| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
The progress of project was better than the expectation because of active national and international collaborations with experts on materials processing, theoretical calculations, structural characterizations, microstructural characterizations and metal hydrides. We could successfully design and synthesize the first Mg-based alloy with room-temperature hydrogen storage capability, which was the final goal of the project. However, the hydrogen storage capacity of the material is still about 1 wt.%, and we need to design and synthesize other systems with higher capacities within following years.
|
