Pressure-enhanced dehydrogenation reaction of the LiBH4–YH3 composite

Kee-Bum Kim; Jae-Hyeok Shim; Young Whan Cho; Kyu Hwan Oh

doi:10.1039/C1CC14072H

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Pressure-enhanced dehydrogenation reaction of the LiBH₄–YH₃ composite†

Kee-Bum Kim,^ab Jae-Hyeok Shim,*^a Young Whan Cho^a and Kyu Hwan Oh^b

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* Corresponding authors

^a High Temperature Energy Materials Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
E-mail: jhshim@kist.re.kr
Fax: +82-2-958-5379
Tel: +82-2-958-6760

^b Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea

Abstract

The increase in hydrogen back pressure unexpectedly enhances the overall dehydrogenation reaction rate of the 4LiBH₄ + YH₃ composite significantly. Also, argon back pressure has a similar influence on the composite. Gas back pressure seems to enhance the dehydrogenation reaction by kinetically suppressing the formation of the diborane by-product.

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Article information

DOI: https://doi.org/10.1039/C1CC14072H
Article type: Communication
Submitted: 07 Jul 2011
Accepted: 22 Jul 2011
First published: 03 Aug 2011

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Chem. Commun., 2011,47, 9831-9833

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Pressure-enhanced dehydrogenation reaction of the LiBH₄–YH₃ composite

K. Kim, J. Shim, Y. W. Cho and K. H. Oh, Chem. Commun., 2011, 47, 9831 DOI: 10.1039/C1CC14072H

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