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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 >Reversible hydrogen storage and phase transformation with altered desorption pressure in Mg90In5Cd5 ternary alloy
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Reversible hydrogen storage and phase transformation with altered desorption pressure in Mg90In5Cd5 ternary alloy

机译：Mg90In5Cd5三元合金中解吸压力改变时的可逆储氢和相变

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摘要

The ternary solid solution alloy Mg90In5Cd5 was prepared by sintering the elemental powder mixture and subsequent mechanical milling. It was found that the hydrogenated products of Mg90In5Cd5 alloy consisted of MgH2, MgIn and Mg3Cd, which could fully recover to Mg(In, Cd) ternary solid solution after dehydrogenation. The PCI results showed reversible hydrogen storage capacity of ca. 4.3 wt.% and elevated equilibrium pressure for the MgH2 in the hydrogenated Mg90In5Cd5 alloy compared with pure MgH2. The Mg90In5Cd5 alloy also exhibited enhanced hydrogenation kinetics with decreased hydrogenation activation energy of 61.0 kJ/mol, but the dehydrogenation rate is slow due to the long-range diffusion of In and Cd in MgH2. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过烧结元素粉末混合物并随后进行机械研磨来制备三元固溶体合金Mg90In5Cd5。结果表明，Mg90In5Cd5合金的氢化产物由MgH2，MgIn和Mg3Cd组成，脱氢后可以完全回收成Mg（In，Cd）三元固溶体。 PCI结果显示约可逆的储氢能力。与纯MgH2相比，氢化Mg90In5Cd5合金中MgH2的重量百分比提高了4.3％。 Mg90In5Cd5合金还表现出增强的氢化动力学，降低了61.0 kJ / mol的氢化活化能，但是由于In和Cd在MgH2中的长距离扩散，其脱氢速率很慢。 （C）2015 Elsevier B.V.保留所有权利。

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