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

Show simple item record Ye, H. en_US Huang, J. en_US Xu, J.J. en_US Kodiweera, N.A.C. en_US Jayakody, J.R.P. en_US Greenbaum, S.G. en_US 2014-11-19T04:44:27Z 2014-11-19T04:44:27Z 2008
dc.description.abstract Proton 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.publisher Journal of Power Sources en_US
dc.subject Proton exchange membranes en_US
dc.subject Ionic liquids en_US
dc.subject Polybenzimidazole en_US
dc.subject NMR en_US
dc.subject FTIR en_US
dc.title New membranes based on ionic liquids for PEM fuel cells at elevated temperatures
dc.type article en_US
dc.identifier.department Physics en_US

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