Effect of Pt-Ru alloy composition on high-temperature methanol electro-oxidation (Articolo in rivista)

Type

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

Label

• Effect of Pt-Ru alloy composition on high-temperature methanol electro-oxidation (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Alternative label

• Aricò A.S., Antonucci P.L., Modica E., Baglio V., Kim H., Antonucci V. (2002)
  Effect of Pt-Ru alloy composition on high-temperature methanol electro-oxidation
  in Electrochimica acta
  (literal)

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

• Aricò A.S., Antonucci P.L., Modica E., Baglio V., Kim H., Antonucci V. (literal)

Pagina inizio

• 3723 (literal)

Pagina fine

• 3732 (literal)

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

• 47 (literal)

Rivista

• Electrochimica acta (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• Effect of Pt-Ru alloy composition on high-temperature methanol electro-oxidation (literal)

Abstract

• The structure, chemistry and morphology of unsupported Pt---Ru electro-catalysts of various compositions were investigated by X-ray diffraction (XRD), energy-dispersive analysis by X-rays and X-ray photoelectron spectroscopy. The metal surface-area of Pt---Ru catalysts prepared in an identical manner increased significantly with the increase in Ru content. The electro-catalytic activity of the catalysts towards methanol oxidation in direct methanol fuel cells (DMFC) was studied at 130 °C. A volcano-shape curve was obtained as a function of alloy composition for both mass and specific activities with a maximum occurring for the Pt:Ru (1:1) electro-catalyst. At low anodic overpotentials, an increase in both mass and specific activities as a function of bulk composition was found up to 50 at.% Ru, corresponding to about 40% Ru on the surface. These results indicate that the bifunctional mechanism governs the methanol electro-oxidation on Pt---Ru in the high temperature range, similarly to conventional DMFC operation (60–90 °C). (literal)

Prodotto di

• Institute for advanced energy technologies \"Nicola Giordano\" (ITAE) (Istituto)

Autore CNR

• VINCENZO BAGLIO (Persona)
• VINCENZO ANTONUCCI (Persona)
• ANTONINO SALVATORE ARICO' (Unità di personale interno)
• ESTERINA MODICA (Unità di personale interno)

Incoming links:

Prodotto

• Institute for advanced energy technologies \"Nicola Giordano\" (ITAE) (Istituto)

Autore CNR di

• ANTONINO SALVATORE ARICO' (Unità di personale interno)
• VINCENZO BAGLIO (Persona)
• VINCENZO ANTONUCCI (Persona)
• ESTERINA MODICA (Unità di personale interno)

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

• Electrochimica acta (Rivista)