Evaluation of Palladium-based electrocatalyst for oxygen reduction and hydrogen oxidation in intermediate temperature polymer electrolyte fuel cells (Articolo in rivista)

Type
Label
  • Evaluation of Palladium-based electrocatalyst for oxygen reduction and hydrogen oxidation in intermediate temperature polymer electrolyte fuel cells (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.2014.05.090 (literal)
Alternative label
  • Stassi A.; Gatto I.; Baglio V.; Arico A.S. (2014)
    Evaluation of Palladium-based electrocatalyst for oxygen reduction and hydrogen oxidation in intermediate temperature polymer electrolyte fuel cells
    in International journal of hydrogen energy
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Stassi A.; Gatto I.; Baglio V.; Arico A.S. (literal)
Pagina inizio
  • 21581 (literal)
Pagina fine
  • 21587 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84902040549&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 39 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-ITAE, Istituto di Tecnologie Avanzate per l'Energia, Nicola Giordano, Via Salita S. Lucia Sopra Contesse, 598126 Messina, Italy (literal)
Titolo
  • Evaluation of Palladium-based electrocatalyst for oxygen reduction and hydrogen oxidation in intermediate temperature polymer electrolyte fuel cells (literal)
Abstract
  • A carbon-supported Palladium electrocatalyst was investigated for oxygen reduction and hydrogen oxidation in a polymer electrolyte fuel cell operating at intermediate temperatures (80e110 ?C) and with low relative humidity (33%). A 30% Pd/C was synthesized by a colloidal method and subsequent carbothermal reduction. A mean particle size of 4.0 nm and a homogeneous dispersion of Pd particles on the support were obtained. The performance of the Pd catalyst was compared to those obtained with a 50% Pt/C catalyst and a 50% Pt3Co1/C as anode and cathode, respectively. The Pd/C catalyst showed low overpotential for hydrogen oxidation whereas its performance as cathode was significantly lower than the benchmark Pt3Co1 catalyst. The main limiting effects for the Pd-based electrocatalyst appeared to be associated to a larger mean particle size compared to the benchmark Pt catalysts and to the modification of the carbon support during the synthesis procedure. These effects led to a stronger activation control, a slight increase of the series resistance and some diffusion constraints. (literal)
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