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dc.contributor.authorBazaga-García, Montse
dc.contributor.authorR.Salcedo, Inés
dc.contributor.authorColodrero, Rosario M.P.
dc.contributor.authorVillemin, Didier
dc.contributor.authorCabeza-Diaz, Aurelio 
dc.contributor.authorOlivera-Pastor, Pascual 
dc.contributor.authorLosilla, Enrique R.
dc.contributor.authorDel Río, Carmen
dc.contributor.authorLópez González, María del Mar
dc.date.accessioned2017-07-05T09:51:10Z
dc.date.available2017-07-05T09:51:10Z
dc.date.created2017-07-05
dc.date.issued2017-07-05
dc.identifier.urihttp://hdl.handle.net/10630/14110
dc.description.abstractPolymer-based electrolytes in proton exchange membrane fuel cells (PEMFCs) utilize acidic groups as proton carriers and hydrogen bonding networks as proton-conducting pathways to facilitate proton transport. Crystalline acid-functionalized metal phosphonates are potential proton conductors while maintaining a high hydration degree below 100 °C. This property may be combined with Nafion-like polymers which tend to dehydrate at the operating conditions of PEMFCs [1,2]. In this work, preliminary results of the preparation of lanthanide amino-sulfophosphonates-loaded Nafion composites membranes and the corresponding electrical properties are reported. Synthesis conditions of lanthanide derivatives were optimized following a hightrough-put screening at 140 °C. Their crystal structures, solved from synchrotron X-ray powder diffraction data, corresponds to layered frameworks where the acidic groups, -CPO3H or -SO3H, point toward the interlamellar region interacting by H-bond with the lattice water. The composites were prepared by mixing the metal phosphonates with Nafion solution at different loadings. The membranes were characterized by SEM, XRD and FT-IR. A study of the proton conductivity as a function of the composite membranes was carried out at 90 °C and 95% RH. Referencias [1] Y. Gao, R. Broersen, W. Hageman, N. Yan, M. C. Mittelmeijer-Hazeleger, G. Rothenberg, S. Tanase. J. Mater. Chem. A, 2015, 3, 22347–22352. [2] A. Cabeza, P. Olivera-Pastor, R. M. P. Colodrero. Tailored Organic-Inorganic Materials, Brunet, E., Colón, J.L., Clearfield, A., Eds.; John Wiley & Sons, Inc. 2015; Ch. 4, 137−191.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectElectrolitos - Conductividades_ES
dc.subjectPolímeroses_ES
dc.subject.otherPEMFCses_ES
dc.subject.otherMetal sulfophosphonateses_ES
dc.subject.otherPolymer membraneses_ES
dc.subject.otherNafiones_ES
dc.subject.otherProton conductivityes_ES
dc.subject.otherCrystal structurees_ES
dc.titleTuning Proton Conductivity Properties of Lanthanide Amino-Sulfophosphonates-Loaded Nafion Composite Membraneses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitleXXXVI REUNIÓN BIENAL DE LA REAL SOCIEDAD ESPAÑOLA DE QUÍMICAes_ES
dc.relation.eventplaceSitges, Españaes_ES
dc.relation.eventdate25/06/2017 - 29/06/2017es_ES
dc.cclicenseby-nc-ndes_ES


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