Study of Mg-M (M = Co, Ni and Fe) mixture elaborated by reactive mechanical alloying: Hydrogen sorption properties

Jean Louis Bobet, Etsuo Akiba, B. Darriet

研究成果: ジャーナルへの寄稿学術誌査読

131 被引用数 (Scopus)

抄録

Reactive Mechanical Alloying (MA in H2) of magnesium powder allows to obtain partial conversion of Mg to MgH2. The ratio MgH2/Mg can be improved by increasing the milling time or by adding a 3d-element (with the same initial particle size). X-ray diffraction was applied successfully to determine the quantity of MgH2 formed. The RMA allows to suppress the activation procedure generally requested for magnesium. The hydriding is determined to be a two step process: first nucleation and then diffusion. A direct relationship exists between the nucleation duration and the specific surface. It is demonstrated that RMA for short time (2 h) is an effective way to strongly improve the hydrogen storage properties of both magnesium and (Mg + 10 wt% M) mixtures.

本文言語英語
ページ(範囲)493-501
ページ数9
ジャーナルInternational Journal of Hydrogen Energy
26
5
DOI
出版ステータス出版済み - 5月 2001
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • 凝縮系物理学
  • エネルギー工学および電力技術

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