Dehydriding property of LiBH4 combined with Mg 2FeH6

Guanqiao Li, Motoaki Matsuo, Stefano Deledda, Ryutaro Sato, Bjørn C. Hauback, Shin Ichi Orimo

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

A dehydriding property of xLiBH4 + (1 - x)Mg2FeH 6 (x = 0.10.83) was investigated. The dehydriding reactions of pure LiBH4 and Mg2FeH6 start at approximately 650 and 450 K, and 12.5 and 4.3 mass% hydrogen are released, respectively. The property drastically changes by combining LiBH4 and Mg 2FeH6. Within the composition range 0.1 ≤ x ≤ 0.5, LiBH4 and Mg2FeH6 simultaneously release hydrogen. The reaction temperatures and quantities of released hydrogen alter with x. The lattice parameter of the Mg2FeH6 phase measured by in-situ highresolution synchrotron diffraction measurements suggest the possibility of forming LixMg2-2x(BH4) x(FeH6)1-x with both double-cation and double-anion.

Original languageEnglish
Pages (from-to)1532-1534
Number of pages3
JournalMaterials Transactions
Volume54
Issue number8
DOIs
Publication statusPublished - 2013

Keywords

  • Complex hydride
  • Hydrogen storage

ASJC Scopus subject areas

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

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