Dehydriding Property of LiBH4 Combined with Mg2FeH6

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

doi:10.2320/matertrans.M2013145

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Dehydriding Property of LiBH₄ Combined with Mg₂FeH₆

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

著者情報

キーワード: hydrogen storage, complex hydride

ジャーナルフリー早期公開

論文ID: M2013145

DOI https://doi.org/10.2320/matertrans.M2013145

この記事には本公開記事があります。

The final version of this article is now available: Vol. 54 (2013), No. 8

詳細

抄録

A dehydriding property of xLiBH₄ + (1 − x)Mg₂FeH₆ (x = 0.1–0.83) 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 Mg₂FeH₆. 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 high-resolution synchrotron diffraction measurements suggest the possibility of forming Li_xMg₂₋₂_x(BH₄)_x(FeH₆)₁₋_x with both double-cation and double-anion.

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