In the present work, the redox properties of ceria and related materials will be considered with a focus on these effects that are relevant in catalysis. Particularly, after briefly pointing out the relevant redox chemistry and characterization of ceria in classical TWC application, we will describe how the reduction/oxidation characteristics of ceria are of help in other applications, like the development of advanced ceria–zirconia based catalyst for auto exhaust treatment, and the elimination of soot from diesel engine exhaust. In the first example, different catalyst formulations based on ceria and zirconia are examined to see how catalytic activity is related with composition and a simple redox mechanism model for CO oxidation is also derived. A similar approach is used to characterize the role of ceria in the combustion of soot.

Insights into the redox properties of ceria-based oxides and their implications in catalysis

ANEGGI, Eleonora;BOARO, Marta;DE LEITENBURG, Carla;DOLCETTI, Giuliano;TROVARELLI, Alessandro
2006

Abstract

In the present work, the redox properties of ceria and related materials will be considered with a focus on these effects that are relevant in catalysis. Particularly, after briefly pointing out the relevant redox chemistry and characterization of ceria in classical TWC application, we will describe how the reduction/oxidation characteristics of ceria are of help in other applications, like the development of advanced ceria–zirconia based catalyst for auto exhaust treatment, and the elimination of soot from diesel engine exhaust. In the first example, different catalyst formulations based on ceria and zirconia are examined to see how catalytic activity is related with composition and a simple redox mechanism model for CO oxidation is also derived. A similar approach is used to characterize the role of ceria in the combustion of soot.
File in questo prodotto:
File Dimensione Formato  
2006 JAllComp 408-412 1096-1102.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 236.75 kB
Formato Adobe PDF
236.75 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Jalloys2006-Nara-invited.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 236.75 kB
Formato Adobe PDF
236.75 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Insights into the redox properties of ceria-based oxides and their implication in catalysis.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 236.75 kB
Formato Adobe PDF
236.75 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Jalloys2006.pdf

non disponibili

Dimensione 233.07 kB
Formato Unknown
233.07 kB Unknown   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11390/877645
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 371
  • ???jsp.display-item.citation.isi??? 349
social impact