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dc.contributor.authorJavadian, P.
dc.contributor.authorSheppard, Drew
dc.contributor.authorBuckley, Craig
dc.contributor.authorJensen, T.
dc.date.accessioned2017-01-30T11:43:17Z
dc.date.available2017-01-30T11:43:17Z
dc.date.created2015-11-04T04:24:24Z
dc.date.issued2015
dc.identifier.citationJavadian, P. and Sheppard, D. and Buckley, C. and Jensen, T. 2015. Hydrogen storage properties of nanoconfined LiBH4-NaBH4. International Journal of Hydrogen Energy. 40 (43): pp. 14916-14924.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/14364
dc.identifier.doi10.1016/j.ijhydene.2015.08.075
dc.description.abstract

In this study a eutectic melting composite of 0.62LiBH4-0.38NaBH4 has been infiltrated in two nanoporous resorcinol formaldehyde carbon aerogel scaffolds with similar pore sizes (37 and 38 nm) but different BET surface areas (690 and 2358 m2/g) and pore volumes (1.03 and 2.64 mL/g). This investigation clearly shows decreased temperature of hydrogen desorption, and improved cycling stability during hydrogen release and uptake of bulk 0.62LiBH4-0.38NaBH4 when nanoconfined into carbon nanopores. The hydrogen desorption temperature of bulk 0.62LiBH4-0.38NaBH4 is reduced by ~107 °C with the presence of carbon, although a minor kinetic variation is observed between the two carbon scaffolds. This corresponds to apparent activation energies, EA, of 139 kJ mol-1 (bulk) and 116-118 kJ mol-1 (with carbon aerogel). Bulk 0.62LiBH4-0.38NaBH4 has poor reversibility during continuous hydrogen release and uptake cycling, maintaining 22% H2 capacity after four hydrogen desorptions (1.6 wt.% H2). In contrast, nanoconfinement into the high surface area carbon aerogel scaffold significantly stabilizes the hydrogen storage capacity, maintaining ~70% of the initial capacity after four cycles (4.3 wt.% H2).

dc.titleHydrogen storage properties of nanoconfined LiBH4-NaBH4
dc.typeJournal Article
dcterms.source.volume40
dcterms.source.number43
dcterms.source.startPage14916
dcterms.source.endPage14924
dcterms.source.issn0360-3199
dcterms.source.titleInternational Journal of Hydrogen Energy
curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusOpen access


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