Preparation method of multi-element metal hydride

The invention discloses a preparation method of multi-element metal hydride. The method comprises the following steps: mixing and roasting raw materials containing a metal, an alkali metal hydride and/or an alkaline earth metal hydride to obtain the multi-element metal hydride. The method successfully prepares the alkali (earth) metal multi-element metal hydride, and has the advantages of simple operation, low reaction temperature, low hydrogen pressure required by the reaction, short material synthesis time and high product purity. 本申请公开了一种多元金属氢化物的制备方法，其特征在于，包括：将含有金属，碱金属氢化物和/或碱土金属氢化物的原料，混合，焙烧，得到所述多元金属氢化物。该方法成功制备出了碱(土)金属多元金属氢化物，该方法操作简便，反应温度较低，反应所需氢压较低，合成材料时间较短，产物纯度较高。