Investigating HPA functionalized mesoporous silica materials for use as high temperature proton exchange membranes

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dc.contributor.authorLamb, Ken_AU
dc.contributor.authorDe Marco, Ren_AU
dc.contributor.authorJiang, SPen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2021-10-08T04:31:05Zen_AU
dc.date.available2021-10-08T04:31:05Zen_AU
dc.date.issued2012-12-07en_AU
dc.date.statistics2021-09-24en_AU
dc.descriptionNot available online. Conference Handbook is held by ANSTO Library at DDC 539.758/9.en_AU
dc.description.abstractHigh temperature (>100°C) proton exchange membrane fuel cells (HT-PEMFC) are solid energy conversion devices that electrochemically convert chemical energy (eg. from alcohols) into electricity. HT-PEMFCs are more efficient than low temperature PEMFCs due to elimination of carbon monoxide poisoning and faster oxidation kinetics. Various types of proton exchange membranes have been explored, such as nonfluorinated hydrocarbon polymers, or hybrid Nafion-based membranes. While these materials have their advantages, they dehydrate at high temperatures, leading to a significant reduction in proton conductivity. Recently, we found that heteropolyacids (HPA) such as tungstophosphiric acid (abbreviated as HPW) can be used to functionalize ordered mesoporous silica (MSN) to make nanocomposites PEMs. While these nanocomposites have shown promising preliminary results as HT-PEMs, the ways in which changes to the structure of these materials affect the proton exchange properties are largely unknown. Analysis techniques such as ex- and in-situ HR-FTIR, SAXS, SANS, and QENS will be used to build an understanding of the membrane structure and proton diffusion mechanisms of these HT-PEMs, thereby determining the best performance HPA-MSNs for use in direct alcohol fuel cells.en_AU
dc.identifier.citationLamb, K., De Marco, R., Jiang, S.P. & Peterson, V. (2012). Investigating HPA functionalized mesoporous silica materials for use as high temperature proton exchange membranes. Paper presented at the 10th AINSE-ANBUG Neutron Scattering Symposium (AANSS), Sydney, 7 - 9 November 2012, (pp.72).en_AU
dc.identifier.conferenceenddate9 November 2012en_AU
dc.identifier.conferencename10th AINSE-ANBUG Neutron Scattering Symposium (AANSS)en_AU
dc.identifier.conferenceplaceSydney, NSW, Australiaen_AU
dc.identifier.conferencestartdate7 November 2012en_AU
dc.identifier.pagination72en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11902en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineering (AINSE)en_AU
dc.subjectMembranesen_AU
dc.subjectSilicaen_AU
dc.subjectEnergyen_AU
dc.subjectPolymersen_AU
dc.subjectProtonsen_AU
dc.subjectNanocompositesen_AU
dc.titleInvestigating HPA functionalized mesoporous silica materials for use as high temperature proton exchange membranesen_AU
dc.typeConference Presentationen_AU
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