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Characteristics of New Approach for Aluminum Hydrogen Storage Materials

Masahiko Katagiri1, Seiichi Kato1, and Kuniko Urashima2
1.National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, Japan
2.National Institute of Science and Technology Policy, 3-2-2, Kasumigaseki, Chiyoda, Tokyo, Japan
Abstract—Hydrogen is an effective fuel to overcome the environmental problem. However, hydrogen gas has very small energy per volume and is desired to develop effective way to dense and store hydrogen in a light material. For the purpose of Fuel-Cell Vehicle (FCV), the gravimetric hydrogen content is to be larger than 6 wt%. Aluminum hydride, AlH3, is hopeful as a hydrogen storage material due to its large gravimetric and volumetric content (10.1 wt% and 148 kg/m3, respectively) . Recently, a new direct-reaction method of synthesizing AlH3 has been developed under high temperature and pressure [1]. On the other hand, it is a problem that the hydrogenation stops near the interface region between Al and its oxide layers even at high pressure of 10GPa [1]. Our goal is to propose some idea to realize the effective aluminum hydrogen storage material.

Index Terms—hydrogen storage, Aluminum, Fuel cell vehicle

Cite: Masahiko Katagiri, Seiichi Kato, and Kuniko Urashima, "Characteristics of New Approach for Aluminum Hydrogen Storage Materials," Journal of Traffic and Logistics Engineering, Vol. 1, No. 2, pp. 254-256, December 2013. doi: 10.12720/jtle.1.2.254-256
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