Structural and morphological investigation of Ce0.6Zr0.4O2 oxides synthesized by sol-gel method: Influence of calcination and redox treatments (Articolo in rivista)

Type
Label
  • Structural and morphological investigation of Ce0.6Zr0.4O2 oxides synthesized by sol-gel method: Influence of calcination and redox treatments (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Liotta L.F., Macaluso A., Pantaleo G., Longo A., Martorana A., Deganello, G., Marcì G. , Gialanella S. (2003)
    Structural and morphological investigation of Ce0.6Zr0.4O2 oxides synthesized by sol-gel method: Influence of calcination and redox treatments
    in Journal of sol-gel science and technology
    (literal)
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  • Liotta L.F., Macaluso A., Pantaleo G., Longo A., Martorana A., Deganello, G., Marcì G. , Gialanella S. (literal)
Pagina inizio
  • 235 (literal)
Pagina fine
  • 240 (literal)
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  • 26 (literal)
Rivista
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  • 1 (literal)
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  • ISMN-CNR, Sez. Palermo (ISMN-Palermo), via Ugo La Malfa, 153, 90146 Palermo, Italy Dipto. Chim. Inorg./Chim. A.S.C., Universitè di Palermo, Viale delle Scienze, 90128 Palermo, Italy Dipto. Ingegneria Chim. Proc./Mat., Università di Palermo, Viale delle Sci., Parco d'Orleans II, 90128 Palermo, Italy Dipto. di Ingegneria dei Mat., Università degli Studi Trento, 38050 Mesiano, Trento, Italy (literal)
Titolo
  • Structural and morphological investigation of Ce0.6Zr0.4O2 oxides synthesized by sol-gel method: Influence of calcination and redox treatments (literal)
Abstract
  • Ceria-zirconia mixed oxides of nominal composition Ce0.6Zr0.4O2 were prepared by sol-gel method. The structural and morphological modifications of these materials due to calcination and redox treatments up to 1000°C were studied by X-ray diffraction (XRD) and Rietveld refinements, specific surface area measurements (BET), oxygen storage capacity (OSC), TEM and SEM analyses. The materials maintain high OSC after several hours of treatments at 1000°C in oxidizing and reducing atmosphere, showing good resistance to the thermal ageing. An improvement of the OSC is manifested after repetitive redox cycles, even though textural characterization shows that reduction/oxidation processes induce sintering of the crystallites. (literal)
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