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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Catalytic effect of additives on the hydrogen absorption properties of nano-crystalline MgH_2 (X) composites
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Catalytic effect of additives on the hydrogen absorption properties of nano-crystalline MgH_2 (X) composites

机译:添加剂对MgH_2(X)纳米晶复合材料吸氢性能的催化作用

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摘要

Hydrogen sorption properties of MgH_2-X nanocomposite powders (X=V, Nb, Ti, TiCN) are conditioned by the milling step. The respective roles of the additives and the milling time have been dissociated. The study reveals details not only on the hydrogen sorption process but also on the particle size reduction, distribution and agglomeration, that depend on the nature of the additives. In addition to the effect related to the extra-elements, the milling time has to be optimised to lead to the best particles size reduction without any agglomeration of the grains.
机译:通过研磨步骤调节MgH_2-X纳米复合粉末(X = V,Nb,Ti,TiCN)的氢吸附性能。添加剂和研磨时间的各自作用已被分离。该研究揭示了不仅涉及氢吸附过程的细节,而且涉及取决于添加剂性质的粒径减小,分布和团聚的细节。除了与多余元素有关的效果外,还必须优化研磨时间,以最大程度地减小颗粒尺寸,而不会导致颗粒团聚。

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