The reduction behaviour of a high surface area CeO2-ZrO2 solid solution is compared with that of a high surface area CeO2. It is shown that, upon sintering induced by repetitive reduction/oxidation processes, the temperature of reduction of the solid solution decreases from 900 to 700 K. In contrast, the reduction at low temperatures of the CeO2 sample is strongly retarded after such treatments. The role of ZrO2 in promoting the reduction at low temperatures is discussed.



Titolo: An unusual promotion of the redox behaviour of CeO2-ZrO2 solid solutions upon sintering at high temperature
Autori: 
BALDUCCI, GABRIELE
FORNASIERO, Paolo
KASPAR, JAN
mostra contributor esterni 
Data di pubblicazione: 1995
Rivista: 
CATALYSIS LETTERS  
Abstract: The reduction behaviour of a high surface area CeO2-ZrO2 solid solution is compared with that of a high surface area CeO2. It is shown that, upon sintering induced by repetitive reduction/oxidation processes, the temperature of reduction of the solid solution decreases from 900 to 700 K. In contrast, the reduction at low temperatures of the CeO2 sample is strongly retarded after such treatments. The role of ZrO2 in promoting the reduction at low temperatures is discussed.
Handle: http://hdl.handle.net/11368/1694210
Digital Object Identifier (DOI): http://dx.doi.org/10.1007/BF00817058
Appare nelle tipologie:1.1 Articolo in Rivista

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