Composites Membranes based on Nafion/PAMAM Dendrimers for PEFCs (Articolo in rivista)

Type
Label
  • Composites Membranes based on Nafion/PAMAM Dendrimers for PEFCs (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ijhydene.2014.04.081 (literal)
Alternative label
  • A. Alvarez, C. Guzmán, S. Rivas, J. Ledesma-García, L. G. Arriaga, A. Saccà, A. Carbone, E. Passalacqua, (2014)
    Composites Membranes based on Nafion/PAMAM Dendrimers for PEFCs
    in International journal of hydrogen energy
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Alvarez, C. Guzmán, S. Rivas, J. Ledesma-García, L. G. Arriaga, A. Saccà, A. Carbone, E. Passalacqua, (literal)
Pagina inizio
  • 1 6 6 8 6 (literal)
Pagina fine
  • 1 6 6 9 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 39 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Division de Investigacion y Posgrado, Facultad de Ingenier?a, Universidad Autonoma de Queretaro, 76010 Queretaro, Mexico b Centro de Investigacion y Desarrollo Tecnologico en Electroqu?mica, 76703 Queretaro, Mexico c CNR-ITAE, Istituto di Tecnologie Avanzate per l'Energia \"Nicola Giordano\", Via S. Lucia sopra Contesse, 5-98126 Messina, Italy d Division Academica, Universidad Tecnologica de Corregidora, 76900 Queretaro, Mexico e Unidad Academica de Ciencias Qu?micas, Universidad Autonoma de Zacatecas, Siglo XXI, 96160 Zacatecas, Mexico (literal)
Titolo
  • Composites Membranes based on Nafion/PAMAM Dendrimers for PEFCs (literal)
Abstract
  • The aim of this work consists in to incorporate organic compounds as PAMAM (Polyamidoamine) dendrimers into the polymeric Nafion matrix to prepare composite membranes as a possible alternative to reduce methanol crossover effect. Composite Nafion membranes were prepared using a 3 wt% of Generation-4 hydroxyl-terminated PAMAM (G4OH) dendrimers containing 64-terminal OH-functional groups. The influence of PAMAM-(G4OH) dendrimer on chemicalephysical properties of the composite membrane was highlighted resulting in a reduction of the methanol permeability (1.05 ? 10?6 cm2 s?1) if compared to a recast bare Nafion membrane (8.19 ? 10?6 cm2 s?1), used as a reference. Good proton conductivity was also observed for PAMAM-(G4OH) composite membrane. The polarization curves carried out at 100 ?C in the presence of 2 M methanol have revealed the higher performance of the PAMAM-(G4OH) membrane when compared to a recast Nafion membrane. (literal)
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