Synthesis and characterization of novel hybrid polysulfone/silica membranes doped with phosphomolybdic acid for fuel cell applications

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Show simple item record Martínez Morlanes, María José Martos Gómez, Ana María Varez Álvarez, Alejandro Levenfeld Laredo, Belén 2016-03-17T15:45:17Z 2015-10-15
dc.identifier.bibliographicCitation Journal of membrane science, 492 (2015), pp. 371–379
dc.identifier.issn 0376-7388
dc.description.abstract Novel proton conducting composite membranes based on sulfonated polysulfone (sPSU)/SiO₂ doped with phosphomolybdic acid (PMoA) were synthesized, and their proton conductivity in acid solutions was evaluated. The hybrid membranes were prepared by casting and the characterization by scanning electron microscopy (SEM), Fourier transform infrared (FIR) and X-ray diffraction (XRD) confirmed the presence of the inorganic charges into the polymer. Thermal properties and proton conductivity were also studied by means of thermogravimetric analysis (TGA) and electrochemical impedance spectroscopy (EIS), respectively. The incorporation of the inorganic particles modified the thermal and mechanical properties of the sPSU as well as its proton conductivity. Taking into account that a compromise between these properties is necessary, the hybrid membrane with 2%SiO₂ and 20%PMoA seems to be a promising candidate for its application in proton-exchange membrane in fuel cells (PEMECs) operated at high temperatures.
dc.description.sponsorship This work has been supported by the Projects from the Regional government (Comunidad de Madrid through MATERYENER3CM S2013/MIT 2753) and MINECO (MAT2013 46452 C4 3R) from Spanish Government.
dc.format.extent 9
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.rights © 2015 Elsevier B.V.
dc.subject.other Proton-exchange membrane fuel cell
dc.subject.other Polysulfone
dc.subject.other Silicon oxide
dc.subject.other Heteropolyacid
dc.subject.other Electrochemical impedance spectroscopy
dc.title Synthesis and characterization of novel hybrid polysulfone/silica membranes doped with phosphomolybdic acid for fuel cell applications
dc.type article
dc.subject.eciencia Energías Renovables
dc.subject.eciencia Materiales
dc.identifier.doi 10.1016/j.memsci.2015.05.031
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2013/MIT-2753/MATERYENER3-CM
dc.relation.projectID Gobierno de España. MAT2013 46452 C4 3 R
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 371
dc.identifier.publicationlastpage 379
dc.identifier.publicationtitle Journal of membrane science
dc.identifier.publicationvolume 492
dc.identifier.uxxi AR/0000017146
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