Ionic Liquid Composite Polybenzimidazol Membranes for High Temperature PEMFC Applications
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Ionic Liquid Composite Polybenzimidazol Membranes for High Temperature PEMFC Applications

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Ionic Liquid Composite Polybenzimidazol Membranes for High Temperature PEMFC Applications

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dc.contributor.author Escorihuela Fuentes, Jorge
dc.contributor.author García Bernabé, Abel
dc.contributor.author Montero, Álvaro
dc.contributor.author Sahuquillo, Óscar
dc.contributor.author Giménez, Enrique
dc.contributor.author Compañ, Vicente
dc.date.accessioned 2019-06-10T13:01:15Z
dc.date.available 2019-06-10T13:01:15Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/10550/70379
dc.description.abstract A series of proton exchange membranes based on polybenzimidazole (PBI) were prepared using the low cost ionic liquids (ILs) derived from 1-butyl-3-methylimidazolium (BMIM) bearing different anions as conductive fillers in the polymeric matrix with the aim of enhancing the proton conductivity of PBI membranes. The composite membranes prepared by casting method (containing 5 wt. % of IL) exhibited good thermal, dimensional, mechanical, and oxidative stability for fuel cell applications. The effects of anion, temperature on the proton conductivity of phosphoric acid-doped membranes were systematically investigated by electrochemical impedance spectroscopy. The PBI composite membranes containing 1-butyl-3-methylimidazolium-derived ionic liquids exhibited high proton conductivity of 0.098 S·cm-1 at 120 ºC when tetrafluoroborate anion was present in the polymeric matrix. This conductivity enhancement might be attributed to the formed hydrogen-bond networks between the IL molecules and the phosphoric acid molecules distributed along the polymeric matrix.
dc.language.iso eng
dc.relation.ispartof Polymers, 2019, vol. 11, num. 4, p. 732
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Escorihuela Fuentes, Jorge García Bernabé, Abel Montero, Álvaro Sahuquillo, Óscar Giménez, Enrique Compañ, Vicente 2019 Ionic Liquid Composite Polybenzimidazol Membranes for High Temperature PEMFC Applications Polymers 11 4 732
dc.subject Compostos organometàl·lics
dc.subject Conductivitat elèctrica
dc.title Ionic Liquid Composite Polybenzimidazol Membranes for High Temperature PEMFC Applications
dc.type info:eu-repo/semantics/article
dc.date.updated 2019-06-10T13:01:15Z
dc.identifier.doi https://doi.org/10.3390/polym11040732
dc.identifier.idgrec 133095

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