Segregation and Selective Oxidation of Ni Atoms in Pt3Ni(111) in a Low-Pressure Oxygen Environment (Articolo in rivista)

Type

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

Label

• Segregation and Selective Oxidation of Ni Atoms in Pt3Ni(111) in a Low-Pressure Oxygen Environment (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

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

• 10.1021/jp409917b (literal)

Alternative label

• Politano, A.; Caputo, M.; Goldoni, A.; Torelli, P.; Chiarello, G. (2013)
  Segregation and Selective Oxidation of Ni Atoms in Pt3Ni(111) in a Low-Pressure Oxygen Environment
  in Journal of physical chemistry. C
  (literal)

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

• Politano, A.; Caputo, M.; Goldoni, A.; Torelli, P.; Chiarello, G. (literal)

Pagina inizio

• 27007 (literal)

Pagina fine

• 27011 (literal)

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

• 117 (literal)

Rivista

• Journal of physical chemistry. C (Rivista)

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

• 5 (literal)

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

• 51 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• University of Calabria; Elettra Sincrotrone Trieste SCpA; IOM CNR; Consorzio Nazl Interuniv Sci Fis Mat (literal)

Titolo

• Segregation and Selective Oxidation of Ni Atoms in Pt3Ni(111) in a Low-Pressure Oxygen Environment (literal)

Abstract

• Understanding the microscopic mechanism of oxygen interaction with the surfaces of Pt-based alloys is an important issue for applications in various fields such as corrosion and oxygen reaction reduction in fuel cells, for which Pt-based alloys are more efficient catalysts with respect to platinum. Herein, the interaction of oxygen with Pt3Ni(111) has been studied by X-ray photoemission, X-ray absorption, and high-resolution electron energy loss spectroscopies. We have found that the oxidation of Pt3Ni(111) at 600 K leads to the segregation of Ni atoms to the surface region. The presence of Ni atoms at the Pt3Ni(111) surface allows O-2 to dissociate to form NiOx surface species. High-resolution electron energy loss spectroscopy measurements performed on Pt(111), Ni(111), and Pt3Ni(111) directly show that, on the Pt3Ni(111) surface, oxygen binds selectively on Ni sites and, moreover, that the O-Ni bond formed on Pt3Ni is weaker than the O-Pt bond formed on Pt(111). (literal)

Prodotto di

• Correlazione elettronica in interfacce magnetiche nanostrutturate e sistemi self-assembled (interfacce molecole-metallo, metallo-metallo, etc..) (MD.P04.006.002) (Modulo)

Autore CNR

• PIERO TORELLI (Persona)

Insieme di parole chiave

• Parole chiave di "Segregation and Selective Oxidation of Ni Atoms in Pt3Ni(111) in a Low-Pressure Oxygen Environment" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• PIERO TORELLI (Persona)

Prodotto

• Correlazione elettronica in interfacce magnetiche nanostrutturate e sistemi self-assembled (interfacce molecole-metallo, metallo-metallo, etc..) (MD.P04.006.002) (Modulo)

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

• Journal of physical chemistry. C (Rivista)

Insieme di parole chiave di

• Parole chiave di "Segregation and Selective Oxidation of Ni Atoms in Pt3Ni(111) in a Low-Pressure Oxygen Environment" (Insieme di parole chiave)