CeO2-ZrO2 mixed oxides show improved redox properties as compared to CeO2 which makes them important innovative materials for three-way catalysts. The origin of this effect and the structural/redox correlation are discussed. The influence of the improved redox capacities on the reduction of NO by CO catalyzed by Rh/CeO2-ZrO2 catalysts is reported and evidence for an active role of the CeO2-ZrO2 support in NO activation is presented.
Oxygen storage and catalytic NO removal promoted by CeO2-containing mixed oxides / DI MONTE, Roberta; Fornasiero, Paolo; Graziani, Mauro; Kaspar, Jan. - In: JOURNAL OF ALLOYS AND COMPOUNDS. - ISSN 0925-8388. - STAMPA. - 275:(1998), pp. 877-885. [10.1016/S0925-8388(98)00476-9]
Oxygen storage and catalytic NO removal promoted by CeO2-containing mixed oxides
DI MONTE, ROBERTA;FORNASIERO, Paolo;GRAZIANI, MAURO;KASPAR, JAN
1998-01-01
Abstract
CeO2-ZrO2 mixed oxides show improved redox properties as compared to CeO2 which makes them important innovative materials for three-way catalysts. The origin of this effect and the structural/redox correlation are discussed. The influence of the improved redox capacities on the reduction of NO by CO catalyzed by Rh/CeO2-ZrO2 catalysts is reported and evidence for an active role of the CeO2-ZrO2 support in NO activation is presented.Pubblicazioni consigliate
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