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Phosphoric Acid Doped Polybenzimidazole (PBI)/Zeolitic Imidazolate Framework Composite Membranes with Significantly Enhanced Proton Conductivity under Low Humidity Conditions

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Phosphoric Acid Doped Polybenzimidazole (PBI)/Zeolitic Imidazolate Framework Composite Membranes with Significantly Enhanced Proton Conductivity under Low Humidity Conditions

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dc.contributor.author	Escorihuela Fuentes, Jorge
dc.contributor.author	Sahuquillo, Óscar
dc.contributor.author	García Bernabé, Abel
dc.contributor.author	Giménez, Enrique
dc.contributor.author	Compañ, Vicente
dc.date.accessioned	2019-06-10T12:49:03Z
dc.date.available	2019-06-10T12:49:03Z
dc.date.issued	2018
dc.identifier.citation	Escorihuela Fuentes, Jorge Sahuquillo, Óscar García Bernabé, Abel Giménez, Enrique Compañ, Vicente 2018 Phosphoric Acid Doped Polybenzimidazole (PBI)/Zeolitic Imidazolate Framework Composite Membranes with Significantly Enhanced Proton Conductivity under Low Humidity Conditions Nanomaterials 8 10 775
dc.identifier.uri	https://hdl.handle.net/10550/70378
dc.description.abstract	The preparation and characterization of composite polybenzimidazole (PBI) membranes containing zeolitic imidazolate framework 8 (ZIF-8) and zeolitic imidazolate framework 67 (ZIF-67) is reported. The phosphoric acid doped composite membranes display proton conductivity values that increase with increasing temperatures, maintaining their conductivity under anhydrous conditions. The addition of ZIF to the polymeric matrix enhances proton transport relative to the values observed for PBI and ZIFs alone. For example, the proton conductivity of PBI@ZIF-8 reaches 3.1 x 10-3 S·cm-1 at 200 ºC and higher values were obtained for PBI@ZIF-67 membranes, with proton conductivities up to 4.1 x 10-2 S·cm-1. Interestingly, a composite membrane containing a 5 wt.% binary mixture of ZIF-8 and ZIF-67 yielded a proton conductivity of 9.2 x 10-2 S·cm-1, showing a synergistic effect on the proton conductivity.
dc.language.iso	eng
dc.relation.ispartof	Nanomaterials, 2018, vol. 8, num. 10, p. 775
dc.subject	Conductivitat elèctrica
dc.subject	Compostos organometàl·lics
dc.title	Phosphoric Acid Doped Polybenzimidazole (PBI)/Zeolitic Imidazolate Framework Composite Membranes with Significantly Enhanced Proton Conductivity under Low Humidity Conditions
dc.type	journal article	es_ES
dc.date.updated	2019-06-10T12:49:03Z
dc.identifier.doi	10.3390/nano8100775
dc.identifier.idgrec	133089
dc.rights.accessRights	open access	es_ES