http://www.cnr.it/ontology/cnr/individuo/prodotto/ID182820

Preparation and charecterization of sulfonated PEEK-WC membranes for fuel cell applications. A comparison between polymeric and composite membranes (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Preparation and charecterization of sulfonated PEEK-WC membranes for fuel cell applications. A comparison between polymeric and composite membranes (Articolo in rivista) (literal)

Anno

2006-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1016/j.jpowsour.2006.02.046 (literal)

Alternative label

Regina A.; Fontananova E.; Drioli E.; Casciola M.; Sganappa M.; Trotta F.; (2006)
Preparation and charecterization of sulfonated PEEK-WC membranes for fuel cell applications. A comparison between polymeric and composite membranes
in Journal of power sources (Print); Elsevier Science SA, Lausanne (Svizzera)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Regina A.; Fontananova E.; Drioli E.; Casciola M.; Sganappa M.; Trotta F.; (literal)

Pagina inizio

139 (literal)

Pagina fine

147 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

160 (literal)

Rivista

Journal of power sources (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

9 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

1 (literal)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Department of Chemical and Materials Engineering, University of Calabria, Via Bucci, 87030 Arcavacata di Rende, Cosenza, Italy Institute on Membrane Technology (ITM-CNR), c/o University of Calabria, Via Bucci, 87030 Arcavacata di Rende, Cosenza, Italy Department of Chemistry, University of Perugia, Center of Excellence on Innovative Nanostructured Materials, Via Elce di Sotto 8, 06123 Perugia, Italy Department of Inorganic Chemistry, Physical Chemistry and Materials Chemistry, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy Università di Torino (literal)

Titolo

Preparation and charecterization of sulfonated PEEK-WC membranes for fuel cell applications. A comparison between polymeric and composite membranes (literal)

Abstract

Sulfonated poly(etheretherketone) with a cardo group (SPEEK-WC) exhibiting a wide range of degree of sulfonation (DS) was used to prepare polymeric membranes and composite membranes obtained by incorporation of an amorphous zirconium phosphate sulfophenylenphosphonate (Zr(HPO4)(O3PC6H4SO3H), hereafter Zr(SPP)) in a SPEEK-WC matrix. The nominal composition of the composite membranes was fixed at 20 wt% of Zr(SPP). Both types of membrane were characterized for their proton conductivity, methanol permeability, water and/or methanol uptake, morphology by SEM and mechanical properties. For comparison, a commercial Nafion 117 membrane was characterized under the same operative conditions. The composite membranes exhibited a reduced water uptake in comparison with the polymeric membranes especially at high DSvalues and temperature higher than 50 oC. As a result, thewater uptake into composite membranes remained about constant in the range 20-70 oC. The methanol permeability (P) of both polymeric and composite membranes was always lower than that of a commercial Nafion 117 membrane. At 22 oC and 100% relative humidity (RH), the proton conductivities (?) of the polymeric membranes increased from 6×10-4 to 1×10-2 S cm-1 with the increase of DS from 0.1 to 1.04. The higher conductivity value was comparable with that of Nafion 117 membrane (3×10-2 S cm-1) measured under the same operative conditions. The conductivities of the composite membranes are close to that of the corresponding polymeric membranes, but they are affected to a lesser extent by the polymer DS. The maximum value of the ?/P ratio (about 7×104 at 25 oC) was found for the composite membrane with DS = 0.2 and was 2.5 times higher than the corresponding value of the Nafion membrane. © 2006 Elsevier B.V. All rights reserved. (literal)

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