Guidelines for developing amide-based hydrogen storage materials

Yuko Nakamori, Gaku Kitahara, Akihito Ninomiya, Masakazu Aoki, Tatsuo Noritake, Shin Ichi Towata, Shin Ichi Orimo

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

An effective method for developing amide-based high-performance hydrogen storage materials is to prepare appropriate combinations of amides and hydrides. We have proposed that a mixture of an amide with a low decomposition temperature and a hydride showing rapid reaction to ammonia would be an appropriate combination. According to this proposal, the mixture of Mg(NH 2) 2 (Mg amide) and LiH (Li hydride) was investigated. The dehydriding temperature of the mixture of Mg(NH 2) 2 and 4.LiH is lower than that of the mixture of LiNH 2 (Li amide) and 2.LiH. A method for preventing ammonia release is increasing the LiH ratio in the mixtures, which results in a reduction in the amount of desorbed hydrogen. The homogeneous dispersion between Mg(NH 2) 2 and LiH might be also an important factor for preventing ammonia release.

Original languageEnglish
Pages (from-to)2093-2097
Number of pages5
JournalMaterials Transactions
Volume46
Issue number9
DOIs
Publication statusPublished - 2005 Sep

Keywords

  • Amide
  • Complex hydrides
  • Hydrogen storage
  • Lithium
  • Magnesium

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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