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Hydrogen desorption behaviour of a ball-milled graphite - LiBH4 composite

Published online by Cambridge University Press:  01 March 2012

Yinghe Zhang ,
Alexander Bevan  and
David Book
Yinghe Zhang
Affiliation:
School of Metallurgy and Materials, College of Engineering and Physical Sciences, University of Birmingham, Birmingham, B15 2TT, UK
Alexander Bevan
Affiliation:
School of Metallurgy and Materials, College of Engineering and Physical Sciences, University of Birmingham, Birmingham, B15 2TT, UK
David Book
Affiliation:
School of Metallurgy and Materials, College of Engineering and Physical Sciences, University of Birmingham, Birmingham, B15 2TT, UK
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Abstract

Graphite that had been ball-milled for 10 h in 3 bar hydrogen, was then mixed with lithium borohydride (2:1 molar ratio of graphite to LiBH4) and milled for a further 2 h. This resulted in a significantly enhanced the hydrogen desorption properties: compared with the pure hydrogenated milled graphite, added LiBH4 lowered the desorption temperature by 170°C, to 230°C, and increase the hydrogen desorption from 5.6 to 9.3 wt%, heating to 500°C. There was no detectable methane generation in the desorption gas.

Keywords

additivescatalyticcomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1386: Symposium D – Sustainable Synthesis of Nanomaterials , 2012 , mrsf11-1386-d02-02
Copyright
Copyright © Materials Research Society 2012

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