Dehydriding property of LiBH4 combined with Mg 2FeH6

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

doi:10.2320/matertrans.M2013145

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 journal › Article › peer-review

11 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 Li_xMg_2-2x(BH₄) _x(FeH₆)_1-x with both double-cation and double-anion.

Original language	English
Pages (from-to)	1532-1534
Number of pages	3
Journal	Materials Transactions
Volume	54
Issue number	8
DOIs	https://doi.org/10.2320/matertrans.M2013145
Publication status	Published - 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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title = "Dehydriding property of LiBH4 combined with Mg 2FeH6",

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.",

keywords = "Complex hydride, Hydrogen storage",

author = "Guanqiao Li and Motoaki Matsuo and Stefano Deledda and Ryutaro Sato and Hauback, {Bj{\o}rn C.} and Orimo, {Shin Ichi}",

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T1 - Dehydriding property of LiBH4 combined with Mg 2FeH6

AU - Li, Guanqiao

AU - Matsuo, Motoaki

AU - Deledda, Stefano

AU - Sato, Ryutaro

AU - Hauback, Bjørn C.

AU - Orimo, Shin Ichi

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Complex hydride

KW - Hydrogen storage

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