Synthesis and partial dehydrogenation of the impregnated lithium borohydride, LiBH4

LiBH4 with high hydrogen density has been attracting great interest as one of potential candidates of advanced hydrogen storage materials. A feasible way to overcome problematic issues on dehydrogenation of LiBH4, such as formation of fine powders and overflow by melting, is expected to synthesize b...

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Published in:Journal of the Ceramic Society of Japan 2009, Vol.117(1364), pp.457-460
Main Authors: MENJO, Masaharu, LI, Hai-Wen, MATSUO, Motoaki, IKEDA, Kazutaka, ORIMO, Shin-ichi
Format: Article
Language:English
Subjects:
Boride
Borides
Borohydride
Complex hydride
Dehydrogenation
Density
Foams
Hydrogen storage
Hydrogen storage materials
Impregnation
Morphology
Nickel
Synthesis
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description LiBH4 with high hydrogen density has been attracting great interest as one of potential candidates of advanced hydrogen storage materials. A feasible way to overcome problematic issues on dehydrogenation of LiBH4, such as formation of fine powders and overflow by melting, is expected to synthesize bulk LiBH4 by applying the "impregnation method". In the present study, LiBH4 on a Ni foam with porosity of 98% homogeneously impregnated the foam at 573 K without changing the original bulk morphology of the foam. The morphology of the impregnated LiBH4 was also well retained, even after a partial dehydrogenation at 873 K. Some Ni borides were found to be newly formed depending on the heating (dehydrogenation) conditions, and the formation probably dominates the microstructure and dehydrogenation property of the impregnated LiBH4.
doi_str_mv 10.2109/jcersj2.117.457
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ispartof Journal of the Ceramic Society of Japan, 2009, Vol.117(1364), pp.457-460
issn 1882-0743
1348-6535
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source JSTAGE
subjects Boride
Borides
Borohydride
Complex hydride
Dehydrogenation
Density
Foams
Hydrogen storage
Hydrogen storage materials
Impregnation
Morphology
Nickel
Synthesis
title Synthesis and partial dehydrogenation of the impregnated lithium borohydride, LiBH4
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