以气相二氧化硅为硅源,采用溶胶-凝胶法合成了具有高稳定性的LaNi4.25Al0.75/SiO2复合储氢材料.通过高压容积法对该复合材料的储氢特性进行了研究.结果表明,该复合材料具有优良的抗循环粉化性能,并且基本保持了LaNi4.25Al0.75合金的储氢性能.利用该方法可获得表面不同孔径的材料,能满足工程中不同的应用需求.
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