The crystal structures in hydrogen absorption reactions of REMgNi4-based alloys (RE: Rare-earth metals)

Toyoto Sato, Shin Ichi Orimo

研究成果: Review article査読

1 被引用数 (Scopus)

抄録

REMgNi4-based alloys, RE(2−x) Mgx Ni4 (RE: rare-earth metals; 0 < x < 2), with a AuBe5-type crystal structure, exhibit reversible hydrogen absorption and desorption reactions, which are known as hydrogen storage properties. These reactions involve formation of three hydride phases. The hydride formation pressures and hydrogen storage capacities are related to the radii of the RE(2−x) Mgx Ni4, which in turn are dependent on the radii and compositional ratios of the RE and Mg atoms. The crystal structures formed during hydrogen absorption reactions are the key to understanding the hydrogen storage properties of RE(2−x) Mgx Ni4. Therefore, in this review, we provide an overview of the crystal structures in the hydrogen absorption reactions focusing on RE(2−x) Mgx Ni4.

本文言語English
論文番号8163
ジャーナルEnergies
14
23
DOI
出版ステータスPublished - 2021 12月 1

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • エネルギー工学および電力技術
  • エネルギー(その他)
  • 制御と最適化
  • 電子工学および電気工学

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