Performance and degradation of high temperature polymer electrolyte fuel cell catalysts (Articolo in rivista)

Type
Label
  • Performance and degradation of high temperature polymer electrolyte fuel cell catalysts (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jpowsour.2007.10.005 (literal)
Alternative label
  • Aricò A.S.; Stassi A.; Modica E.; Ornelas R.; Gatto I.; Passalacqua E.; Antonucci E. (2008)
    Performance and degradation of high temperature polymer electrolyte fuel cell catalysts
    in Journal of power sources (Print); ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Aricò A.S.; Stassi A.; Modica E.; Ornelas R.; Gatto I.; Passalacqua E.; Antonucci E. (literal)
Pagina inizio
  • 525 (literal)
Pagina fine
  • 536 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 178 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-ITAE Institute, via Salita S. Lucia sopra Contesse 5, S. Lucia, 98126 Messina, Italy (literal)
Titolo
  • Performance and degradation of high temperature polymer electrolyte fuel cell catalysts (literal)
Abstract
  • An investigation of carbon-supported Pt/C and PtCo/C catalysts was carried out with the aim to evaluate their stability under high temperature polymer electrolyte membrane fuel cell (PEMFC) operation. Carbon-supported nanosized Pt and PtCo particles with a mean particle size between 1.5 nm and 3 nm were prepared by using a colloidal route. A suitable degree of alloying was obtained for the PtCo catalyst by using a carbothermal reduction. The catalyst stabilitywas investigated to understand the influence of carbon black corrosion, platinum dissolution and sintering in gas-fed sulphuric acid electrolyte half-cell at 75 oC and in PEMFC at 130 oC. Electrochemical active surface area and catalyst performance were determined in PEMFC at 80 oC and 130 oC. A maximum power density of about 700mWcm-2 at 130 oC and 3 bar abs. O2 pressure with 0.3 mg Pt cm-2 loading was achieved. The PtCo alloy showed a better stability than Pt in sulphuric acid after cycling; yet, the PtCo/C catalyst showed a degradation after the carbon corrosion test. The PtCo/C catalyst showed smaller sintering effects than Pt/C after accelerated degradation tests in PEMFC at 130 oC. (literal)
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