C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 23/00 (2006.01) C01B 3/00 (2006.01) C22C 19/03 (2006.01) H01M 4/38 (2006.01)
Patent
CA 2479450
Disclosed are new Ca, Mg and Ni-containing alloys of the general formula: (Cac Mgd Me)b(Ni1-zTz)a where: M is at least one metal selected from the group consisting of Y, Ce, La, Pr, Nd, Th, Nd, Ti, V, Zr, Ta, Hf, Sr, Ba and Misch metals; T is at least one element selected from the group consisting of Al, Zn, Cu, Fe, Co, Mn, Cr, Mo, W, Si, Ga, Ge, In, Sn, Ag, C and B; a is an integer equal to 2 or 5; z is a number ranging from 0 to 0.5; and when a is equal to 2, then 0.9<=b<=1.1; and when a is equal to 5, then either 1.75<=b<=2.25 or 0.75<=b<=1.31. These alloys which are of the AB2, A2B5 or AB5 types, may be single phase or multiphase and are useful for reversibly absorbing hydrogen from a gas phase. Also disclosed is a method for preparing the above alloys.
Liang Guoxian
Schulz Robert
Gowling Lafleur Henderson Llp
Hera Hydrogen Storage Systems Inc.
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