| 摘要 |
PURPOSE:To obtain a hydrogen occluding material having a satisfactory hydrogen equilibrium pressure during the occlusion and release of hydrogen by providing a composition represented by a formula CaNialphaMbeta having an atomic ratio alpha of Ni to Ca and an atomic ratio beta of M (Cr, Mn, Fe, Co, Cu or the like) to Ca. CONSTITUTION:This hydrogen occluding material is represented by a general formula CaNialphaMbeta (where M is one or more among Cr, Mn, Fe, Co, Cu, V, Mo, Zr, Nb, Ta, Al and Si). The atomic ratio alpha of Ni to Ca is 3.8-5.8, the atomic ratio beta of M to Ca is 0.5-1.5, and alpha+beta=4.4-4.7. The hydrogen occluding material has a satisfactory hydrogen equilibrium pressure during the occlusion and release of hydrogen.
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