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dc.contributor.authorHumphries, Terry
dc.contributor.authorMunroe, K.
dc.contributor.authorDewinter, T.
dc.contributor.authorJensen, C.
dc.contributor.authorMcGrady, G.
dc.identifier.citationHumphries, T. and Munroe, K. and Dewinter, T. and Jensen, C. and McGrady, G. 2013. NMR spectroscopic and thermodynamic studies of the etherate and the a, a', and γ phases of AlH3. International Journal of Hydrogen Energy. 38 (11): pp. 4577-4586.

Aluminum hydride (alane; AlH3) has been identified as a leading hydrogen storage material by the US Department of Energy. With a high gravimetric hydrogen capacity of 10.1 wt.%, and a hydrogen density of 1.48 g/cm3, AlH3 decomposes cleanly to its elements above 60 °C with no side reactions. This study explores in detail the thermodynamic and spectroscopic properties of AlH3; in particular the α, α′ and γ polymorphs, of which α′-AlH3 is reported for the first time, free from traces of other polymorphs or side products. Thermal analysis of α-, α′-, and γ-AlH3 has been conducted, using DSC and TGA methods, and the results obtained compared with each other and with literature data. All three polymorphs were investigated by 1H MAS-NMR spectroscopy for the first time, and their 27Al MAS-NMR spectra were also measured and compared with literature values. AlH3·nEt2O has also been studied by 1H and 27Al MAS-NMR spectroscopy and DSC and TGA methods, and an accurate decomposition pathway has been established for this adduct.

dc.titleNMR spectroscopic and thermodynamic studies of the etherate and the a, a', and γ phases of AlH3
dc.typeJournal Article
dcterms.source.titleInternational Journal of Hydrogen Energy
curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusFulltext not available

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