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dc.contributor.authorPaskevicius, Mark
dc.contributor.authorSheppard, Drew
dc.contributor.authorBuckley, Craig
dc.identifier.citationPaskevicius, M. and Sheppard, D.A. and Buckley, C.E. 2009. Characterisation of mechanochemically synthesised alane (AlH3) nanoparticles. Journal of Alloys and Compounds. 487 (1-2): pp. 370-376.

A mechanochemical synthesis process has been used to synthesise alane (AlH3) nanoparticles. The alane is synthesised via a chemical reaction between lithium alanate (LiAlH4) and aluminium chloride (AlCl3) at room temperature within a ball mill and at 77K within a cryogenic mill. The reaction product formed consists of alane nanoparticles embedded within a lithium chloride (LiCl) by-product phase. The LiCl is washed with a solvent resulting in alane nanoparticles which are separated from the by-product phase but are kinetically stabilised by an amorphous particle surface layer. The synthesis of a particular alane structural phase is largely dependent on the milling conditions and two major phases (α, α′) as well as two minor phases (β, γ) have been identified. Ball milling at room temperature can also provide enough energy to allow alane to release hydrogen gas and form aluminium metal nanoparticles. A comparison between XRD and hydrogen desorption results suggest a non-crystalline AlH3 phase is present in the synthesised samples.

dc.publisherElsevier B.V.
dc.subjectHydrogen storage materials
dc.subjectX-ray diffraction
dc.subjectMechanochemical synthesis
dc.titleCharacterisation of mechanochemically synthesised alane (AlH3) nanoparticles
dc.typeJournal Article
dcterms.source.titleJournal of Alloys and Compounds

The link to the journal’s home page is: Copyright © 2009 Elsevier B.V. All rights reserved

curtin.departmentDepartment of Imaging and Applied Physics
curtin.accessStatusOpen access

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