Phosphoric acid doped hydrophobic ionic liquid-based composite membranes for anhydrous proton exchange membrane application
RSC Advances Pub Date: 2017-01-04 DOI: 10.1039/C6RA25460H
Abstract
In this study, phosphoric acid doped hydrophobic ionic liquid-based composite membranes are successfully synthesized and characterized. 1-Vinyl-3-butylimidazolium bis(trifluoromethylsulfonyl)-imide ([VBIm][NTf2]) was synthesized and used as hydrophobic phase in the composite membranes. The H3PO4 uptake of the composite membranes increases with the increasing content of [VBIm][NTf2] and then decreases. The resultant composite membranes showed good thermal stability, mechanical properties and high proton conductivity (up to the order of 10?2 S cm?1 at 180 °C) at high temperatures under anhydrous conditions. The results of this study suggest that this type of PEMs have good perspectives for high temperature proton exchange membrane fuel cell applications.
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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