The effect of C sub(60) additive on magnesium hydride for hydrogen storage

A systematic survey of the catalytic effect of up to 10 wt% C sub(60) carbon buckyballs on the kinetics of hydrogen desorption and subsequent absorption of magnesium hydride has been made. It was found that there was an optimum amount of C sub(60) additive for the best desorption kinetics as well as...

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Bibliographic Details
Published in:International journal of hydrogen energy 2015-09, Vol.40 (33), p.10508-10515
Main Authors: Alsabawi, K, Webb, T A, Gray, EMacA, Webb, C J
Format: Article
Language:English
Subjects:
Additives
Buckminsterfullerene
Desorption
Fullerenes
Hydrides
Hydrogen storage
Magnesium
Optimization
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Summary:A systematic survey of the catalytic effect of up to 10 wt% C sub(60) carbon buckyballs on the kinetics of hydrogen desorption and subsequent absorption of magnesium hydride has been made. It was found that there was an optimum amount of C sub(60) additive for the best desorption kinetics as well as an optimum time of ball-milling, improving the desorption kinetics over that of ball-milling alone. A comparison with the additive Nb sub(2)O sub(5) under the same conditions indicated that desorption kinetic enhancement was relatively minor. The subsequent absorption kinetics were always poorer than the un-catalysed samples.
ISSN:0360-3199
DOI:10.1016/j.ijhydene.2015.06.110