Structural and dehydriding properties of Ca(BH4)2

M. Aoki; K. Miwa; T. Noritake; N. Ohba; M. Matsumoto; Haiwen Li; Y. Nakamori; S. Towata; S. Orimo

doi:10.1007/s00339-008-4548-5

Structural and dehydriding properties of Ca(BH₄)₂

M. Aoki, K. Miwa, T. Noritake, N. Ohba, M. Matsumoto, Haiwen Li, Y. Nakamori, S. Towata, S. Orimo

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

65 Citations (Scopus)

Abstract

We have investigated the structural and dehydriding properties of Ca(BH₄)₂. It was found that Ca(BH₄)₂ undergoes a structural phase transformation from an orthorhombic low-temperature (LT) modification into a tetragonal high-temperature (HT) modification between 433∈K and 523∈K. The amount of hydrogen desorbed from Ca(BH₄)₂ during the pressure-composition (p-c) isotherm measurement was 5.9 mass%. This hydrogen desorption is caused by the partial dehydrogenation of Ca(BH₄)₂ accompanied by the formation of CaH₂ and orthorhombic intermediate phases.

Original language	English
Pages (from-to)	601-605
Number of pages	5
Journal	Applied Physics A: Materials Science and Processing
Volume	92
Issue number	3
DOIs	https://doi.org/10.1007/s00339-008-4548-5
Publication status	Published - Aug 1 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)

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title = "Structural and dehydriding properties of Ca(BH4)2",

abstract = "We have investigated the structural and dehydriding properties of Ca(BH4)2. It was found that Ca(BH4)2 undergoes a structural phase transformation from an orthorhombic low-temperature (LT) modification into a tetragonal high-temperature (HT) modification between 433∈K and 523∈K. The amount of hydrogen desorbed from Ca(BH4)2 during the pressure-composition (p-c) isotherm measurement was 5.9 mass%. This hydrogen desorption is caused by the partial dehydrogenation of Ca(BH4)2 accompanied by the formation of CaH2 and orthorhombic intermediate phases.",

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T1 - Structural and dehydriding properties of Ca(BH4)2

AU - Aoki, M.

AU - Miwa, K.

AU - Noritake, T.

AU - Ohba, N.

AU - Matsumoto, M.

AU - Li, Haiwen

AU - Nakamori, Y.

AU - Towata, S.

AU - Orimo, S.

PY - 2008/8/1

Y1 - 2008/8/1

N2 - We have investigated the structural and dehydriding properties of Ca(BH4)2. It was found that Ca(BH4)2 undergoes a structural phase transformation from an orthorhombic low-temperature (LT) modification into a tetragonal high-temperature (HT) modification between 433∈K and 523∈K. The amount of hydrogen desorbed from Ca(BH4)2 during the pressure-composition (p-c) isotherm measurement was 5.9 mass%. This hydrogen desorption is caused by the partial dehydrogenation of Ca(BH4)2 accompanied by the formation of CaH2 and orthorhombic intermediate phases.

AB - We have investigated the structural and dehydriding properties of Ca(BH4)2. It was found that Ca(BH4)2 undergoes a structural phase transformation from an orthorhombic low-temperature (LT) modification into a tetragonal high-temperature (HT) modification between 433∈K and 523∈K. The amount of hydrogen desorbed from Ca(BH4)2 during the pressure-composition (p-c) isotherm measurement was 5.9 mass%. This hydrogen desorption is caused by the partial dehydrogenation of Ca(BH4)2 accompanied by the formation of CaH2 and orthorhombic intermediate phases.

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JO - Applied Physics

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Structural and dehydriding properties of Ca(BH₄)₂

Abstract

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