Methanol oxidation on carbon-supported platinum-tin electrodes in sulfuric acid (Articolo in rivista)

Type

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

Label

• Methanol oxidation on carbon-supported platinum-tin electrodes in sulfuric acid (Articolo in rivista) (literal)

Anno

• 1994-01-01T00:00:00+01:00 (literal)

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

• 10.1016/0378-7753(94)01908-8 (literal)

Alternative label

• Arico A.S.; Antonucci V.; Giordano N.; Shukla A.K.; Ravikumar M.K.; Roy A.; Barman S.R.; Sarma D.D. (1994)
  Methanol oxidation on carbon-supported platinum-tin electrodes in sulfuric acid
  in Journal of power sources (Print)
  (literal)

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

• Arico A.S.; Antonucci V.; Giordano N.; Shukla A.K.; Ravikumar M.K.; Roy A.; Barman S.R.; Sarma D.D. (literal)

Pagina inizio

• 295 (literal)

Pagina fine

• 309 (literal)

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

• http://www.scopus.com/inward/record.url?eid=2-s2.0-0028466915&partnerID=q2rCbXpz (literal)

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

• 50 (literal)

Rivista

• Journal of power sources (Rivista)

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

• 3 (literal)

Note

• Scopu (literal)

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

• CNR Institute for Transformation and Storage of Energy, Santa S. Lucia Sopra Contesse 39, 98126 S. Lucia, Messina, Italy; Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560 012, India (literal)

Titolo

• Methanol oxidation on carbon-supported platinum-tin electrodes in sulfuric acid (literal)

Abstract

• A study is made of the electrooxidation of methanol in sulfuric acid on carbon-supported electrodes containing platinum-tin bimetal catalysts that are prepared by an in situ potentiometric-characterization route. The catalysts are investigated by employing chemical analyses, X-ray diffraction (XRD), X-ray absorption-near-edge spectroscopy (XANES) and X-ray photoelectron spectroscopy (XPS) data in conjunction with electrochemical measurements. From the electrochemical data, it is inferred that while an electrode with (3:1) Pt-Sn/C catalyst involves a two-electron rate-limiting step akin to platinum-on-carbon electrodes, it is shifted to a one-electron mechanism on electrodes with (3:2)Pt-Sn/C, (3:3)Pt-Sn/C, and (3:4)Pt-Sn/C catalysts. The study suggests that the tin content in the platinum-tin bimetal catalyst produces: (i) a charge transfer from tin to platinum; (ii) an increase in the coverage of adsorbed methanolic residues with increase in the tin content, as indicated by the shift in rest potential of the electrodes towards the reversible value for oxidation of methanol (0.043 V versus SHE), and (iii) a decrease in the overall content of higher valent platinum sites in the catalyst. © 1994. (literal)

Prodotto di

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

Autore CNR

• VINCENZO ANTONUCCI (Persona)
• ANTONINO SALVATORE ARICO' (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 ANTONUCCI (Persona)

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

• Journal of power sources (Rivista)