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Proton-conducting ionic liquid-based Proton Exchange Membrane Fuel Cell membranes: The key role of ionomer-ionic liquid interaction |
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| Authors: | Mathieu Martinez Laure Cointeaux Jean-Claude Leprêtre Patrick Judeinstein |
| Affiliation: | a LEPMI, UMR 5631, CNRS-INP-UJF, PHELMA-Campus, BP.75, 1130 rue de la Piscine, 38402 Saint-Martin-d’Hères Cedex, France b Laboratoire de Rhéologie, UMR 5520 CNRS-INPG-UJF, ENSHMG, BP 53, 38041 Grenoble, France c Institut de Chimie Moléculaire et des Matériaux d’Orsay (UMR 8182), Bâtiment 410, Université Paris-Sud 11, 91405 Orsay Cedex, France |
| Abstract: | The paper deals with the synthesis and characterisation of proton-conducting ionic liquids (PCILs) and their polymer electrolytes obtained by blending modified Nafion membranes with different concentrations of PCILs. The PCILs are obtained by the neutralization of triethylamine with different organic acids. The first part of the paper studies the influence of acidity and acid structure on PCIL thermal and electrochemical performance, while the second part examines membrane conductivity and reveals it to depend more on PCIL structure than on its intrinsic conductivity. At 130 °C, conductivities exceeding 10 mS cm−1 were obtained in fully anhydrous conditions. |
| Keywords: | High-temperature PEMFC Anhydrous proton-conducting membrane Nafion PCIL Ionic liquids |
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