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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23546

Title: Hydrogen Absorption Performance of Mechanically Alloyed (Mg2 Ni)100 x Tix Powder
Authors: Chin-Yi Chen;Chun-Kai Wang;Pee-Yew Lee;Chung-Kwei Lin
Contributors: NTOU:Institute of Materials Engineering
國立臺灣海洋大學:材料工程研究所
Keywords: intermetallics;hydrogen storage;mechanical alloying;Mg2Ni;titanium;X-ray absorption near-edge structure (XANES)
Date: 2007
Issue Date: 2011-10-20T08:06:34Z
Publisher: Materials Transactions
Abstract: Abstract:The hydrogen storage alloy (Mg2Ni)100-xTix (x=0, 2.5, 5.0, 7.5 and 10.0 at%) powders were synthesized from elemental powder mixture by mechanical alloying (MA) under an Ar atmosphere. The as-milled powders were examined as a function of titanium addition by X-ray diffraction and synchrotron X-ray absorption near-edge structure (XANES) techniques at various milling time. The hydrogen absorption kinetics of the 15 h as-milled powders were evaluated. The maximum hydrogen absorption content of 15 h as-milled Mg2Ni powders can be improved from 3.14 mass% to 3.88 mass% when 5.0 at% of titanium was added. The hydrogenation rate of the Mg2Ni powder was also obviously enhanced by introducing the titanium into Mg2Ni lattices. More than 20% improvement of hydrogen absorption for Mg2Ni intermetallic powders was achieved by adding titanium.
Relation: 48(12), pp.3170-3175
URI: http://ntour.ntou.edu.tw/handle/987654321/23546
Appears in Collections:[材料工程研究所] 期刊論文

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