In situ TEM Observation on Hydrogenation of Hydrogen Storage Materials

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  • Matsuda Junko
    九州大学カーボンニュートラル・エネルギー国際研究所
  • Yoshida Kenta
    名古屋大学高等研究院 ファインセラミックスセンターナノ構造研究所

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  • 水素吸蔵反応のTEMその場観察
  • スイソキュウゾウ ハンノウ ノ TEM ソノ バ カンサツ

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Abstract

<p>While global warming and fossil fuel drain pose a problem, development of the hydrogen storage material which can store and convey compactly and safely hydrogen is important; hydrogen can mutually alter to electricity. The characteristics such as hydrogen absorption capacity, cycle ability and reaction rate are related to the microstructure in a hydrogen absorption process. In this research, the TEM sample holder with an ex situ cell was produced for the purpose of clarifying microstructure of the hydrogen storage material during hydrogenation. When TEM observation was carried out as it was, without taking out in the atmosphere the palladium powder which was exposed to hydrogen gas, the coarsening of the crystal grain was observed. Next, environmental TEM performed in situ observation on hydrogenation of Mg-Ni films. As a result, it was clarified that MgH2 crystallized after Mg2NiH4 formation.</p>

Journal

  • KENBIKYO

    KENBIKYO 49 (2), 83-87, 2014-08-30

    The Japanese Society of Microscopy

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