A LaNi4.25Al0.75/SiO2 hydrogen absorbing composite with high stability was prepared via sol-gel process by mixing water with gas SiO2 and its hydrogen storage performance was examined by a Sieverts-type apparatus. The results indicated that the composite possess excellent pulverization resistance with cycles and almost kept the same hydrogenabsorbing capacity level as LaNi4.25Al0.75 alloy. Different pore sizes on the surface can be attained by this process to meet the requirements of different engineering applications.
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