Abstract Low temperature formation of Mg2FeH6 is demonstrated by hydrogenation of Mg-Fe elemental powder mixture at a temperature as low as 350 °C which is lower than the conventional process temperature, 500 °C. To enable the low temperature synthesis, the powder mixture of Mg and Fe has been prepared by high energy ball milling using different process control agents (PCAs). A systematic study on the ball milling and hydrogenation conditions has been carried out to maximize the yield of the ternary line compound. The hydrogenation conditions together with the particle size of the starting materials turn out to play a significant role in the hydrogenation kinetics of the system. An optimized condition has demonstrated a significant hydrogenation as well as a robust cycling ability at low temperature which suggests the strong potential of the process for practical applications.

中文翻译：

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Mg-Fe球磨纳米晶粉末混合物加氢低温生成Mg 2 FeH 6

摘要 Mg-Fe 元素粉末混合物在低至 350 °C 的温度下加氢证明了 Mg2FeH6 的低温形成，该温度低于常规工艺温度 500 °C。为了实现低温合成，使用不同的过程控制剂 (PCA) 通过高能球磨制备了 Mg 和 Fe 的粉末混合物。对球磨和氢化条件进行了系统研究，以最大限度地提高三元线化合物的产率。加氢条件与起始材料的粒度一起证明在系统的加氢动力学中起重要作用。