Hydrogen absorption performance of mechanically alloyed (Mg 2Ni)100-xTix powder

Chin Yi Chen, Chun Kai Wang, Pee Yew Lee, Chung Kwei Lin

研究成果: 雜誌貢獻文章

3 引文 斯高帕斯(Scopus)


The hydrogen storage alloy (Mg2Ni)100-xTix (x = 0, 2.5, 5.0, 7.5 and 10.0at%) 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 3.14mass% to 3.88mass% when 5.0at% of titanium was added. The hydrogenation rate of the Mg 2Ni 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.
頁(從 - 到)3170-3175
期刊Materials Transactions
出版狀態已發佈 - 十二月 2007

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

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