doi:10.1016/j.memsci.2013.12.006engEguizábal Alguacil, AdelaSgroi, MauroPullini, DanieleFerain, EtiennePina Iritia, Maria PilarNanoporous PBI Membranes by Track-Etching for High Temperature PEMFCART-2014-84805This article describes for the first time the preparation of conducting track-etched PBI membranes 25 mm thick with pore diameter values varying from 15 nm to 50 nm and overall porosity up to 10%. The TGA, DSC and FTIR characterization results for the so obtained nanoporous membranes reveal the chemical modification of PBI upon irradiation along the track walls. A clear conduction outperforming is shown by phosphoric acid doped track-etched PBI in comparison with dense PBI counterparts. This behavior could be explained by the effective contribution of additional pathways for proton transport involving shorter benzimidazole fragments, cross-linked PBI nanodomains and free amphoteric phosphoric acid molecules settled on the pore walls.2014http://zaguan.unizar.es/record/7801410.1016/j.memsci.2013.12.006http://zaguan.unizar.es/record/78014oai:zaguan.unizar.es:78014info:eu-repo/grantAgreement/EC/FP7/209481/EU/NANOSTRUCTURED ELECTROLYTE MEMBRANES BASED ON POLYMER-IONIC LIQUIDS-ZEOLITE COMPOSITES FOR HIGH TEMPERATURE PEM FUEL CELL/ZEOCELLJOURNAL OF MEMBRANE SCIENCE 454 (2014), 243-252by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess