Magnesium alloys for hydrogen storage

Details Magnesium alloys for hydrogen storage Magnesium alloys for hydrogen storage

C - Chemistry, Metallurgy

22

C

C22C 23/00 (2006.01) C22C 1/02 (2006.01)

Patent

CA 2588807

A method of producing a hydrogen storage material including the steps of: forming a magnesium - nickel melt having up to 50 wt% nickel; adding up to 2 wt% of a refining element to the melt under a non-oxidising atmosphere, the refining element having an atomic radius within the range of 1-1.65 times the atomic radius of magnesium, such as at least one element selected from the group consisting of Zr, Na, K, Ba, Ca, Sr, La, Y, Yb, Rb and Cs; and solidifying the melt to produce the hydrogen storage material.

L'invention porte sur un procédé de production d'un matériau de stockage d'hydrogène comportant les étapes suivantes: formation d'un bain de magnésium - nickel à 50 % en poids de nickel; adjonction au bain sous atmosphère non oxydante de jusqu'à 2 % en poids d'un élément d'affinage présentant un rayon atomique de 1 à 1,65 fois celui du magnésium consistant en au moins un élément choisi parmi Zr, Na, K, Ba, Ca, Sr, La, Y, Yb, Rb et Cs; et solidification du bain pour obtenir le matériau de stockage d'hydrogène.

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