Enhanced Chemical Reactivity of Under-Coordinated Atoms at Pt-Rh Bimetallic Surfaces: A Spectroscopic Characterization (Articolo in rivista)

Type

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

Label

• Enhanced Chemical Reactivity of Under-Coordinated Atoms at Pt-Rh Bimetallic Surfaces: A Spectroscopic Characterization (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1021/jp110329w (literal)

Alternative label

• Alessandro Baraldi, Laura Bianchettin, Stefano de Gironcoli, Erik Vesselli, Silvano Lizzit, Luca Petaccia, Giovanni Comelli, and Renzo Rosei (2011)
  Enhanced Chemical Reactivity of Under-Coordinated Atoms at Pt-Rh Bimetallic Surfaces: A Spectroscopic Characterization
  in The Journal of Physical Chemistry C; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
  (literal)

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

• Alessandro Baraldi, Laura Bianchettin, Stefano de Gironcoli, Erik Vesselli, Silvano Lizzit, Luca Petaccia, Giovanni Comelli, and Renzo Rosei (literal)

Pagina inizio

• 3378 (literal)

Pagina fine

• 3384 (literal)

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

• http://pubs.acs.org/doi/abs/10.1021/jp110329w (literal)

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

• 115 (literal)

Rivista

• The Journal of Physical Chemistry C (Rivista)

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

• 7 (literal)

Note

• Scopus (literal)
• ISI Web of Science (WOS) (literal)

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

• Physics Department and Center of Excellence for Nanostructured Materials, University of Trieste, Via Valerio 2, I-34127 Trieste, Italy, and IOM-CNR Laboratorio TASC, AREA Science Park, S.S. 14 Km 163.5, 34149 Trieste, Italy SISSA-Scuola Internazionale Superiore di Studi Avanzati and INFM-CNR DEMOCRITOS National Simulation Center, Via Beirut 2-4, I-34014 Trieste, Italy Sincrotrone Trieste S.C.p.A., S.S. 14 Km 163.5, I-34149 Trieste, Italy (literal)

Titolo

• Enhanced Chemical Reactivity of Under-Coordinated Atoms at Pt-Rh Bimetallic Surfaces: A Spectroscopic Characterization (literal)

Abstract

• The electronic structure and chemical reactivity changes of highly under-coordinated Rh atoms on a Pt(111) surface versus coordination number were studied by a combination of synchrotron radiation core level photoemission spectroscopy and density functional theory. The properties of Rh adatoms are strongly modified by the Pt substrate, when compared with the equivalent atomic configuration in the homometallic environment. A remarkable linear relationship is found between core level shifted spectral components, originating from different atomic geometrical structures, and the corresponding induced d-band center shifts. This finding strongly underscores the relevance of core level shifts as reliable experimental descriptors of chemical reactivity, also for under-coordinated atoms in bimetallic transition metal systems. The availability of an experimental tool capable of detecting local surface alloy configurations with enhanced chemical reactivity opens up the possibility to investigate more complex systems with high density of under-coordinated atoms, such as nanostructured multicomponent alloy surfaces and bimetallic nanoclusters. (literal)

Editore

• ACS, American chemical society (Editore)

Prodotto di

• MD.P06.016.001 Proprieta' elettroniche e strutturali di sistemi a bassa dimensionalita' (MD.P06.016.003) (Modulo)

Autore CNR

• GIOVANNI COMELLI (Persona)
• ERIK VESSELLI (Persona)
• ALESSANDRO BARALDI (Unità di personale esterno)
• STEFANO MARIA DE GIRONCOLI (Persona)

Insieme di parole chiave

• Parole chiave di "Enhanced Chemical Reactivity of Under-Coordinated Atoms at Pt-Rh Bimetallic Surfaces: A Spectroscopic Characterization" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• STEFANO MARIA DE GIRONCOLI (Persona)
• ALESSANDRO BARALDI (Unità di personale esterno)
• GIOVANNI COMELLI (Persona)
• ERIK VESSELLI (Persona)

Prodotto

• MD.P06.016.001 Proprieta' elettroniche e strutturali di sistemi a bassa dimensionalita' (MD.P06.016.003) (Modulo)

Editore di

• ACS, American chemical society (Editore)

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

• The Journal of Physical Chemistry C (Rivista)

Insieme di parole chiave di

• Parole chiave di "Enhanced Chemical Reactivity of Under-Coordinated Atoms at Pt-Rh Bimetallic Surfaces: A Spectroscopic Characterization" (Insieme di parole chiave)