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Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs)

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Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs)

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dc.contributor.author Barjola-Ruiz, Arturo es_ES
dc.contributor.author Escorihuela Fuentes, Jorge es_ES
dc.contributor.author Andrio Balado, Andreu es_ES
dc.contributor.author Giménez Torres, Enrique es_ES
dc.contributor.author Compañ Moreno, Vicente es_ES
dc.date.accessioned 2020-02-21T21:01:38Z
dc.date.available 2020-02-21T21:01:38Z
dc.date.issued 2018 es_ES
dc.identifier.uri http://hdl.handle.net/10251/137584
dc.description.abstract [EN] The zeolitic imidazolate frameworks (ZIFs) ZIF-8, ZIF-67, and a Zn/Co bimetallic mixture (ZMix) were synthesized and used as fillers in the preparation of composite sulfonated poly(ether ether ketone) (SPEEK) membranes. The presence of the ZIFs in the polymeric matrix enhanced proton transport relative to that observed for SPEEK or ZIFs alone. The real and imaginary parts of the complex conductivity were obtained by electrochemical impedance spectroscopy (EIS), and the temperature and frequency dependence of the real part of the conductivity were analyzed. The results at different temperatures show that the direct current (dc) conductivity was three orders of magnitude higher for composite membranes than for SPEEK, and that of the SPEEK/ZMix membrane was higher than those for SPEEK/Z8 and SPEEK/Z67, respectively. This behavior turns out to be more evident as the temperature increases: the conductivity of the SPEEK/ZMix was 8.5 x 10(-3) S.cm(-1), while for the SPEEK/Z8 and SPEEK/Z67 membranes, the values were 2.5 x 10(-3) S.cm(-1) and 1.6 x 10(-3) S.cm(-1), respectively, at 120 degrees C. Similarly, the real and imaginary parts of the complex dielectric constant were obtained, and an analysis of tan delta was carried out for all of the membranes under study. Using this value, the diffusion coefficient and the charge carrier density were obtained using the analysis of electrode polarization (EP). es_ES
dc.description.sponsorship This work was funded by The Spanish Ministerio de Economia y Competitividad (MINECO) under the project ENE/2015-69203-R. es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation MINISTERIO DE ECONOMIA Y EMPRESA/ENE2015-69203-R es_ES
dc.relation.ispartof Nanomaterials es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Proton exchange membrane es_ES
dc.subject Sulfonated poly(ether ether ketone) es_ES
dc.subject Zeolitic imidazoleate framework es_ES
dc.subject Proton conduction es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs) es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/nano8121042 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.description.bibliographicCitation Barjola-Ruiz, A.; Escorihuela Fuentes, J.; Andrio Balado, A.; Giménez Torres, E.; Compañ Moreno, V. (2018). Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs). Nanomaterials. 8(12). https://doi.org/10.3390/nano8121042 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/nano8121042 es_ES
dc.description.upvformatpinicio 1042 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 8 es_ES
dc.description.issue 12 es_ES
dc.identifier.eissn 2079-4991 es_ES
dc.relation.pasarela S\377947 es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES


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