Synthesis and decomposition of pure Ca(AlH4)2

Naoto Morisaku, Kenji Komiya, Yuzhan Li, Hiroshi Yukawa, Masahiko Morinaga, Kazutaka Ikeda, Shin Ichi Orimo

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Pure Ca(AlH4)2 is synthesized and its decomposition reactions are investigated in a fundamental manner. The XRD profile observed is in good agreement with the one reported by Fichtner et al. From TDS measurements, Ca(AlH4)2 appears to decompose into CaH 2+2Al+3H2 in three steps. The peak temperature of the first reaction is about 470K which is higher than that for Mg(AlH 4)2 (about 450K), indicating that Ca(AlH4) 2 is more stable hydride than Mg(AlH4)2. In addition, the catalysis of TiCl3 is doped into Ca(AlH 4)2 by ball milling under a hydrogen gas atmosphere and catalytic effects on the decomposition properties are investigated.

Original languageEnglish
Pages (from-to)869-872
Number of pages4
JournalAdvanced Materials Research
Volume24-25
DOIs
Publication statusPublished - 2007
EventPRICM 6: The 6th Pacific Rim International Conference on Advanced Materials and Processing - Jeju Island, Korea, Republic of
Duration: 2007 Nov 52007 Nov 9

Keywords

  • Calcium alanate
  • Complex hydrides
  • Hydrogen storage materials

ASJC Scopus subject areas

  • Engineering(all)

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