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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.citation	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.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.subject	Compostos organometàl·lics
dc.subject	Conductivitat elèctrica
dc.title	Ionic Liquid Composite Polybenzimidazol Membranes for High Temperature PEMFC Applications
dc.type	journal article	es_ES
dc.date.updated	2019-06-10T13:01:15Z
dc.identifier.doi	10.3390/polym11040732
dc.identifier.idgrec	133095
dc.rights.accessRights	open access	es_ES