http://www.cnr.it/ontology/cnr/individuo/prodotto/ID53360
Exafs study of ceria-lanthana-based TWC promoters prepared by sol-gel routes (Articolo in rivista)
- Type
- Label
- Exafs study of ceria-lanthana-based TWC promoters prepared by sol-gel routes (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Deganello F.; Longo A.; Martorana A. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- Scopus (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- ISMN-CNR, via Ugo La Malfa, 153, Palermo I-90146, Italy
Dipartimento di Chimica, Inorganica e Analitica ''Stanislao Cannizzaro'', Universita` di Palermo, Viale delle Scienze, Palermo I-90128, Italy (literal)
- Titolo
- Exafs study of ceria-lanthana-based TWC promoters prepared by sol-gel routes (literal)
- Abstract
- Extended X-ray absorption fine structure (EXAFS) experiments at the Ce K- and La K-edges were performed on cerialanthana
alumina three-way catalysts promoters prepared by solgel routes, in order to investigate the effect of lanthanum doping on the ceria
structure. The formation of Ce1-xLaxO2-x/2 solid solution, already observed by X-ray diffraction, was confirmed by EXAFS
analysis, while no experimental evidence of a CeAl interaction was found. In presence of cerium and aluminum, lanthanum is
involved in the formation of solid solution with CeO2 and of LaAl compounds. When the La:Al molar ratio is sufficiently high, the
growth of a tridimensionally ordered LaAlO3 perovskite compound is observed. For increasing values of x/1-x in the solid
solution Ce1-xLaxO2-x/2, the CeO distance decreases, while LaO distance remains nearly constant. (literal)
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Prodotto
- Autore CNR di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di