Synthesis and hydrogen storage properties of a single-phase magnesium borohydride Mg(BH4)2

Hai Wen Li; Kentaro Kikuchi; Toyoto Sato; Yuko Nakamori; Nobuko Ohba; Masakazu Aoki; Kazutoshi Miwa; Shin Ichi Towata; Shin Ichi Orimo

doi:10.2320/matertrans.MA200807

Synthesis and hydrogen storage properties of a single-phase magnesium borohydride Mg(BH₄)₂

Hai Wen Li, Kentaro Kikuchi, Toyoto Sato, Yuko Nakamori, Nobuko Ohba, Masakazu Aoki, Kazutoshi Miwa, Shin Ichi Towata, Shin Ichi Orimo

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

A single phase Mg(BH₄)₂ was successfully synthesized and its hydrogen storage properties were systematically investigated. Depending on the synthesis conditions, Mg(BH₄)₂ forms low- and high-temperature phases with different crystal structures. The dehydriding reaction of Mg(BH₄)₂ starts at approximately 500 K. and 14.4mass% of hydrogen is released through a multi-step reaction. Furthermore 6.1 mass% of hydrogen can be rehydrided for the sample of Mg(BH₄) ₂ after the dehydriding reaction, through the formation of a possible intermediate compound such as MgB₁₂H₁₂.

Original language	English
Pages (from-to)	2224-2228
Number of pages	5
Journal	Materials Transactions
Volume	49
Issue number	10
DOIs	https://doi.org/10.2320/matertrans.MA200807
Publication status	Published - Oct 1 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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title = "Synthesis and hydrogen storage properties of a single-phase magnesium borohydride Mg(BH4)2",

abstract = "A single phase Mg(BH4)2 was successfully synthesized and its hydrogen storage properties were systematically investigated. Depending on the synthesis conditions, Mg(BH4)2 forms low- and high-temperature phases with different crystal structures. The dehydriding reaction of Mg(BH4)2 starts at approximately 500 K. and 14.4mass% of hydrogen is released through a multi-step reaction. Furthermore 6.1 mass% of hydrogen can be rehydrided for the sample of Mg(BH4) 2 after the dehydriding reaction, through the formation of a possible intermediate compound such as MgB12H12.",

author = "Li, {Hai Wen} and Kentaro Kikuchi and Toyoto Sato and Yuko Nakamori and Nobuko Ohba and Masakazu Aoki and Kazutoshi Miwa and Towata, {Shin Ichi} and Orimo, {Shin Ichi}",

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T1 - Synthesis and hydrogen storage properties of a single-phase magnesium borohydride Mg(BH4)2

AU - Li, Hai Wen

AU - Kikuchi, Kentaro

AU - Sato, Toyoto

AU - Nakamori, Yuko

AU - Ohba, Nobuko

AU - Aoki, Masakazu

AU - Miwa, Kazutoshi

AU - Towata, Shin Ichi

AU - Orimo, Shin Ichi

PY - 2008/10/1

Y1 - 2008/10/1

N2 - A single phase Mg(BH4)2 was successfully synthesized and its hydrogen storage properties were systematically investigated. Depending on the synthesis conditions, Mg(BH4)2 forms low- and high-temperature phases with different crystal structures. The dehydriding reaction of Mg(BH4)2 starts at approximately 500 K. and 14.4mass% of hydrogen is released through a multi-step reaction. Furthermore 6.1 mass% of hydrogen can be rehydrided for the sample of Mg(BH4) 2 after the dehydriding reaction, through the formation of a possible intermediate compound such as MgB12H12.

AB - A single phase Mg(BH4)2 was successfully synthesized and its hydrogen storage properties were systematically investigated. Depending on the synthesis conditions, Mg(BH4)2 forms low- and high-temperature phases with different crystal structures. The dehydriding reaction of Mg(BH4)2 starts at approximately 500 K. and 14.4mass% of hydrogen is released through a multi-step reaction. Furthermore 6.1 mass% of hydrogen can be rehydrided for the sample of Mg(BH4) 2 after the dehydriding reaction, through the formation of a possible intermediate compound such as MgB12H12.

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Synthesis and hydrogen storage properties of a single-phase magnesium borohydride Mg(BH₄)₂

Abstract

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