Novel hydrogen storage materials and method of making by dry...

Details Novel hydrogen storage materials and method of making by dry... Novel hydrogen storage materials and method of making by dry...

C - Chemistry, Metallurgy

01

B

C01B 3/00 (2006.01) C01B 6/24 (2006.01)

Patent

CA 2339656

Dry homogenized metal hydrides, in particular aluminum hydride compounds, as a material for reversible hydrogen storage is provided. The reversible hydrogen storage material comprises a dry homogenized material having transition metal catalytic sites on a metal aluminum hydride compound, or mixtures of metal aluminum hydride compounds. A method of making such reversible hydrogen storage materials by dry doping is also provided and comprises the steps of dry homogenizing metal hydrides by mechanical mixing, such as by crushing or ball milling a powder, of a metal aluminum hydride with a transition metal catalyst. In another aspect of the invention, a method of powering a vehicle apparatus with the reversible hydrogen storage material is provided.

L'invention concerne des hydrures métalliques homogénéisés à sec, notamment des composés d'hydrure d'aluminium, utilisés en tant que matériau pour le stockage réversible d'hydrogène. Le matériau de stockage réversible d'hydrogène comprend un matériau homogénéisé à sec possédant des sites catalytiques à métal de transition, sur un composé d'hydrure d'aluminium, ou des mélanges de composés d'hydrure d'aluminium métallique. L'invention porte aussi sur un procédé de fabrication desdits matériaux de stockage réversible d'hydrogène par dopage à sec. Ledit procédé consiste à homogénéiser à sec des hydrures de métal par mélangeage mécanique, par exemple, par concassage ou broyage au boulet d'une poudre, d'un hydrure d'aluminium métallique avec un catalyseur à métal de transition. Selon un autre aspect de l'invention, un procédé de propulsion d'un appareil formant véhicule au moyen d'un matériau de stockage d'hydrogène est également décrit.

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