Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd-PdO transformation hysteresis (Articolo in rivista)

Type

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

Label

• Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd-PdO transformation hysteresis (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.apcata.2010.09.033 (literal)

Alternative label

• Sara Colussi, Alessandro Trovarelli, Erik Vesselli, Alessandro Baraldi, Giovanni Comelli, Gianpiero Groppid, Jordi Llorcae (2010)
  Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd-PdO transformation hysteresis
  in Applied catalysis. A, General (Print); Elsevier, Amsterdam (Paesi Bassi)
  (literal)

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

• Sara Colussi, Alessandro Trovarelli, Erik Vesselli, Alessandro Baraldi, Giovanni Comelli, Gianpiero Groppid, Jordi Llorcae (literal)

Pagina inizio

• 1 (literal)

Pagina fine

• 10 (literal)

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

• http://www.sciencedirect.com/science/article/pii/S0926860X10006873 (literal)

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

• 390 (literal)

Rivista

• Applied catalysis. A, General (Rivista)

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

• 10 (literal)

Note

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

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

• Dipartimento di Scienze e Tecnologie Chimiche, Università di Udine, Via del Cotonificio 108, 33100 Udine, Italy Dipartimento di Fisica and CENMAT, Università degli Studi di Trieste, Via Valerio 2, 34127 Trieste, Italy Istituto Officina dei Materiali IOM-CNR Laboratorio TASC, Area Science Park, S.S. 14km 163.5, 34149 Trieste, Italy Dipartimento di Energia, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy Institut de Tècniques Enèrgetiques, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain Centre for Research in Nanoengineering, Universitat Politècnica de Catalunya, Pascual i Vila 15, 08028 Barcelona, Spain (literal)

Titolo

• Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd-PdO transformation hysteresis (literal)

Abstract

• Catalytic combustion of methane has been studied for many years due to its applications in power generation and emissions clean-up. Among different catalysts, Pd-based materials are the most active for the catalytic combustion of methane. In this work we have investigated the Pd-PdO transformation process on Pd-alumina and Pd-ceria-alumina combustion catalysts by combining different analytical techniques. Both decomposition of PdO and reoxidation of Pd take place via the formation of an intermediate, which has been identified as a surface or interfacial PdOx on the basis of X-ray Photoelectron Spectroscopy analysis. The results obtained by coupling temperature programmed oxidation with high resolution transmission electron microscopy and X-ray photoelectron spectroscopy indicate that PdO decomposition is a thermodynamically driven process, in which the support affects only the amount of PdO species involved in each decomposition step. On the contrary, Pd reoxidation is a kinetically limited process, which is strongly affected by the environment. In particular, the presence of promoters such as CeO2 or residual PdO significantly speeds up Pd oxidation, thus reducing the characteristic Pd-PdO hysteresis. (literal)

Editore

• Elsevier (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)
• ALESSANDRO BARALDI (Unità di personale esterno)
• ERIK VESSELLI (Persona)

Insieme di parole chiave

• Keywords of "Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd-PdO transformation hysteresis" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• 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)

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

• Applied catalysis. A, General (Rivista)

Editore di

• Elsevier (Editore)

Insieme di parole chiave di

• Keywords of "Structure and morphology of Pd/Al2O3 and Pd/CeO2/Al2O3 combustion catalysts in Pd-PdO transformation hysteresis" (Insieme di parole chiave)