New membranes based on ionic liquids for PEM fuel cells at elevated temperatures

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dc.contributor.authorYe, H.en_US
dc.contributor.authorHuang, J.en_US
dc.contributor.authorXu, J.J.en_US
dc.contributor.authorKodiweera, N.A.C.en_US
dc.contributor.authorJayakody, J.R.P.en_US
dc.contributor.authorGreenbaum, S.G.en_US
dc.date.accessioned2014-11-19T04:44:27Z
dc.date.available2014-11-19T04:44:27Z
dc.date.issued2008
dc.description.abstractProton exchange membrane (PEM) fuel cells operating at elevated temperature, above 120 �C, will yield significant benefits but face big challenges for the development of suitable PEMs. The objectives of this research are to demonstrate the feasibility of the concept and realize [acid/ionic liquid/polymer] composite gel-type membranes as such PEMs. Novel membranes consisting of anhydrous proton solvent H3PO4, the protic ionic liquid PMIH2PO4, and polybenzimidazole (PBI) as a matrix have been prepared and characterized for PEM fuel cells intended for operation at elevated temperature (120?150 �C). Physical and electrochemical analyses have demonstrated promising characteristics of these H3PO4/PMIH2PO4/PBI membranes at elevated temperature. The proton transport mechanism in these new membranes has been investigated by Fourier transform infrared and nuclear magnetic resonance spectroscopic methods.en_US
dc.identifier.departmentPhysicsen_US
dc.identifier.urihttp://repository.kln.ac.lk/handle/123456789/3964
dc.publisherJournal of Power Sourcesen_US
dc.subjectProton exchange membranesen_US
dc.subjectIonic liquidsen_US
dc.subjectPolybenzimidazoleen_US
dc.subjectNMRen_US
dc.subjectFTIRen_US
dc.titleNew membranes based on ionic liquids for PEM fuel cells at elevated temperatures
dc.typearticleen_US

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