Reactivation of aged model Pd/Ce0.68Zr0.32O2 three-way catalyst by high temperature oxidising treatment.
A deactivated (aged under redox-cycled model TWC feed-stream) Pd/Ce(0.68)Zr(0.32)O(2) catalyst is remarkably reactivated when subjected to a high temperature oxidising treatment whereas this effect is only marginal for Pd/Al(2)O(3), which indicates the key role of such treatment in restoring the Pd-Ce(0.68)Zr(0.32)O(2) interactions leading to highly active catalysts.
Hickey
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N
Dipartimento di Scienze Chimiche, Università di Trieste, Via Giorgieri 1, 34127 Trieste, Italy.
Fornasiero
P
P
Di Monte
R
R
Kaspar
J
J
González-Velasco
J R
JR
Gutiérrez-Ortiz
M A
MA
González-Marcos
M P
MP
Gatica
J M
JM
Bernal
S
S