Dehydriding reaction of AlH3: In situ microscopic observations combined with thermal and surface analyses

K. Ikeda, S. Muto, K. Tatsumi, M. Menjo, S. Kato, M. Bielmann, A. Züttel, C. M. Jensen, S. Orimo

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

The dehydriding reaction of single-phase α- AlH3 was investigated by in situ microscopic observations combined with thermal and surface analyses. Before the dehydriding reaction, primary AlH3 particles of size 100 nm-1 νm were thought to be covered by an oxide layer with a thickness of less than 5 nm. Both the precipitation/grain-growth of metallic Al of size 1-50 nm and an increase in 'boundary space' were clearly observed inside the particles, while the morphologies of the particles covered by the layer did not change during the dehydriding reaction. This preliminary report provides fundamental information for a further study of AlH3 as a possible hydrogen storage material.

Original languageEnglish
Article number204004
JournalNanotechnology
Volume20
Issue number20
DOIs
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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