Influence of the preparation conditions on the properties of polymeric and hybrid cation exchange membranes (Articolo in rivista)

Type
Label
  • Influence of the preparation conditions on the properties of polymeric and hybrid cation exchange membranes (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.electacta.2012.01.074 (literal)
Alternative label
  • Fontananova E.; Cucunato V.; Curcio E.; Trotta F.; Biasizzo M.; Drioli E.; Barbieri G.; (2012)
    Influence of the preparation conditions on the properties of polymeric and hybrid cation exchange membranes
    in Electrochimica acta
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Fontananova E.; Cucunato V.; Curcio E.; Trotta F.; Biasizzo M.; Drioli E.; Barbieri G.; (literal)
Pagina inizio
  • 164 (literal)
Pagina fine
  • 172 (literal)
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  • 66 (literal)
Rivista
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  • 9 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • National Research Council, Institute on Membrane Technology (ITM-CNR), Via Pietro BUCCI, c/o The University of Calabria, cubo 17C, 87036 Rende CS, Italy The University of Calabria, Department of Chemical Engineering and Materials, cubo 44A, Via Pietro BUCCI, 87036 Rende CS, Italy The University of Torino, Department of Inorganic Chemistry, Physical Chemistry and Materials Chemistry, Via Pietro GIURIA 7, 10125 Torino, Italy (literal)
Titolo
  • Influence of the preparation conditions on the properties of polymeric and hybrid cation exchange membranes (literal)
Abstract
  • The present work deals with the influence of the membrane preparation conditions on the properties of polymeric and hybrid cation exchange membranes prepared by casting and solvent evaporation method. The polymer material used was the sulphonated derivative of an amorphous polyetheretherketone, known as PEEK-WC (sulphonated polymer is indicated as SPEEK-WC). Hybrid SPEEK-WC membrane containing inorganic proton conductors were also prepared at various loading (acid silicotungstate, ammonium and cesium silicotungstate). Different properties of the polymer electrolyte membranes (PEMs), like proton conductivity, ion exchange capacity, methanol permeability, water content and thermal stability, were examined as a function of solvent type, casting temperature and membrane post-treatment. The membrane cast using dimethyl sulphoxide (DMSO) as solvent, at higher temperature (45 oC vs 30 oC) and with acid post-treatments, resulted to be more conductive. It was found that polymer-solvent interactions play a determining role on the PEM microstructural organization and, as a consequence, on the proton transport pathway. The electrochemical properties of the PEMs are indeed closely related to their microstructure, especially the spatial distribution and nature of their ionic sites. The DMSO use as solvent increased also the thermal stability of the membranes (higher decomposition temperature of the sulphonic groups). (literal)
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