机械合金化（Mg+Mg<sub>2</sub>Ni）+TiO<sub>2</sub>合金的储氢性能

机械合金化（Mg+Mg₂Ni）+TiO₂合金的储氢性能

摘要: 用机械合金化法合成了(Mg+Mg₂N i)+TiO₂储氢合金,借助XRD分析了TiO₂的加入对合金的物相结构的影响,SEM考察了合金的形貌。TiO₂在合金的吸放氢过程中起到很好的催化作用,降低合金放氢温度并且提高合金储氢量,(Mg+Mg₂N i)+10wt%TiO₂合金在573K下的储氢量是5.84wt%。

Abstract: The hydrogen storage alloy（Mg+Mg₂Ni）+TiO₂ was synthesized by mechanical milling.The effect of the addition of TiO₂ on alloy phase structure was analyzed by XRD and the grain size of the alloys was investigated by SEM.TiO₂ has a catalytic effect on hydrogen absorption and desorption,and the alloy desorption temperature decreases and hydrogen storage capacity increases.The alloy（Mg+Mg₂Ni）+10wt%TiO₂ hydrogen storage capacity is 5.84wt% at 573K.