Using MgO to improve the (de)hydriding properties of magnesium
Using MgO to improve the (de)hydriding properties of magnesium
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DOI：
10.1016/j.materresbull.2005.11.011
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发表时间：
2006-06-15
影响因子：
5.4
通讯作者：
Bormann, R.
中科院分区：
文献类型：
--
作者：
Aguey-Zinsou, K. -F.;Fernandez, J. R. Ares;Bormann, R.
在目前正在研究的用于移动的应用的安全储存大量氢气的所有材料中，镁仍然是最有吸引力的。镁是一种轻、低成本的金属，具有高的储氢容量，但其（脱）包动力学必须改进以用于实际应用。最近，通过机械研磨氢化镁与催化剂过渡金属或金属氧化物，镁中的氢动力学已经显著改善。在这里，我们报告说，类似的改进可以实现不使用催化剂。我们的研究结果表明，与氧化镁研磨的氢化镁显示出与用催化剂过渡金属或金属氧化物获得的那些一样快的脱氢和还原动力学。(c)2005爱思唯尔有限公司保留所有权利。
Of all the materials presently being investigated to safely store high volumes of hydrogen for mobile applications; magnesium remains the most attractive. Magnesium is a light, low cost metal with high capacity for hydrogen storage but its (de)hydriding kinetics have to be improved for practical applications. Recently, hydrogen kinetics in magnesium have been significantly improved by mechanically milling magnesium hydride with catalyst transition metals or metal oxides. Here, we report that similar improvements can be achieved without using a catalyst. Our results demonstrate that magnesium hydride milled with magnesium oxide exhibits dehydriding and hydriding kinetics as fast as those obtained with catalyst transition metals or metal oxides. (c) 2005 Elsevier Ltd. All rights reserved.