Local atomic structural investigations of precursory phenomenon of the hydrogen release from LiAlD4

Toyoto Sato, Keisuke Tomiyasu, Kazutaka Ikeda, Toshiya Otomo, Mikhail Feygenson, Jörg Neuefeind, Kazuyoshi Yamada, Shin Ichi Orimo

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Local atomic structural investigations of LiAlD4, which is composed of Li+ and [AlD4]-, at 40-300 K were studied by total neutron scattering combined with pair distribution function (PDF) analysis for understanding of hydrogen release from LiAlD4. The results showed that the Al-D pair distribution almost unchanged, while the Li-D pair distribution clearly started to broaden and shrink above 200-250 K. The shrinking of the Li-D pair distribution might lead to the local generation of LiD, which was speculated as the precursory phenomenon for the hydrogen release from LiAlD4.

Original languageEnglish
Pages (from-to)244-247
Number of pages4
JournalJournal of Alloys and Compounds
Volume586
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Complex hydride
  • Hydrogen storage
  • Local atomic structure
  • Pair distribution function
  • Total neutron scattering

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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