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Crystals 2012, 2(2), 690-703; doi:10.3390/cryst2020690

Silica-Metal Composite for Hydrogen Storage Applications

1,* , 2
1 Casaccia Research Centre, ENEA–Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123, Rome, Italy 2 Labor S.r.l. Industrial Research Laboratory, Via Giacomo Peroni 386, Rome, Italy
* Author to whom correspondence should be addressed.
Received: 2 February 2012 / Revised: 23 May 2012 / Accepted: 6 June 2012 / Published: 18 June 2012
(This article belongs to the Special Issue Hydrogen Storage Alloys)
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In spite of their favourable chemical characteristics, using AB5 alloys as fixed bed for hydrogen storage devices requires proper management of a number of technological aspects. Among these, the mechanical stability of metal particle grains under hydrogen cycling and the overall thermal conductivity of the material bed constitute crucial features. We developed by High Energy Ball Milling HEBM a mechanically stable silica-based AB5 composite with enhanced thermal conductivity. Here, focusing on the material’s physical-chemical properties, we report on the silica-AB5 composite development and characterization. Particularly, we studied the material consolidation process, the resulting composite morphology and the system behaviour under hydrogen loading/unloading cycling.
Keywords: CMC; silica; porous matrix; metal alloy; composite; ball milling; hydrogen storage CMC; silica; porous matrix; metal alloy; composite; ball milling; hydrogen storage
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Pentimalli, M.; Imperi, E.; Bellusci, M.; Alvani, C.; Santini, A.; Padella, F. Silica-Metal Composite for Hydrogen Storage Applications. Crystals 2012, 2, 690-703.

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