000078025 001__ 78025 000078025 005__ 20190529115244.0 000078025 0247_ $$2doi$$a10.1016/j.jpowsour.2012.07.094 000078025 0248_ $$2sideral$$a81742 000078025 037__ $$aART-2013-81742 000078025 041__ $$aeng 000078025 100__ $$0(orcid)0000-0001-5973-4330$$aEguizábal, A. 000078025 245__ $$aOn the incorporation of protic ionic liquids imbibed in large pore zeolites to polybenzimidazole membranes for high temperature proton exchange membrane fuel cells 000078025 260__ $$c2013 000078025 5060_ $$aAccess copy available to the general public$$fUnrestricted 000078025 5203_ $$aConducting fillers based on 2-hydromethyl) trimethylammoniun dimethyl phosphate (IL1), N,N-dimethyl-N-(2-hydroxyethyl) ammonium bis(trifluoromethanesulfonyl)imide (IL2) and 1-H-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (IL3) encapsulated in large pore zeolites (NH4BEA and NaY) have been added to the PBI casting solution for the preparation of high temperature proton exchange membranes (HTPEMs). The filler loading has been systematically varied from 3% to 20% wt. for all the studied composites. The morphological, physicochemical, and electrochemical properties of the as prepared hybrid doped PBI membranes have been fully characterized. For a given conduction filler, the optimum loading is found to be 3% wt. as inferred from the conductivity measurements at 0.05 water molar fraction. Among the tested, the outstanding electrolyte membranes are those containing IL3-NaY. The exhibited through-plane proton conductivity is 54 mS cm-1 at 200 °C for the optimum PBI + IL3-NaY_3%wt hybrid membrane. The so obtained results are explained by the assisted 1-H-3-methylimidazolium and bis(trifluoromethanesulfonyl)imide hydrogen bonding type interactions, clearly beneficial for the proton conduction processes. Moreover, the H2 permeability values for the hybrid electrolyte membranes and pure PBI are quite similar at the examined conditions; indicating the suitability of the preparation procedure in terms of fuel cross-over. The H+/H2 transport selectivity of the optimum IL3-NaY composite membrane clearly outperforms pure PBI and zeolite-PBI counterparts at 50°, 100° and 150 °C. Finally, the optimum composite membranes have been validated in H2/O2 single cell under non humidified conditions up to 180 °C as a “proof of concept” demonstration. 000078025 536__ $$9info:eu-repo/grantAgreement/EC/FP7/209481/EU/NANOSTRUCTURED ELECTROLYTE MEMBRANES BASED ON POLYMER-IONIC LIQUIDS-ZEOLITE COMPOSITES FOR HIGH TEMPERATURE PEM FUEL CELL/ZEOCELL 000078025 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000078025 590__ $$a5.211$$b2013 000078025 591__ $$aENERGY & FUELS$$b8 / 83 = 0.096$$c2013$$dQ1$$eT1 000078025 591__ $$aELECTROCHEMISTRY$$b2 / 27 = 0.074$$c2013$$dQ1$$eT1 000078025 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000078025 700__ $$0(orcid)0000-0002-9048-5691$$aLemus, J. 000078025 700__ $$0(orcid)0000-0001-9897-6527$$aPina, M. P.$$uUniversidad de Zaragoza 000078025 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química 000078025 773__ $$g222 (2013), 483-492$$pJ. power sources$$tJOURNAL OF POWER SOURCES$$x0378-7753 000078025 8564_ $$s234861$$uhttps://zaguan.unizar.es/record/78025/files/texto_completo.pdf$$yPostprint 000078025 8564_ $$s76004$$uhttps://zaguan.unizar.es/record/78025/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000078025 909CO $$ooai:zaguan.unizar.es:78025$$particulos$$pdriver 000078025 951__ $$a2019-05-29-11:44:46 000078025 980__ $$aARTICLE