In the present paper the use of CeO2-based materials in the automotive three-way catalysts (TWCs) is considered. The multiple roles of CeO2 as a TWC promoter and in particular the oxygen storage/release capacity (OSC) are critically discussed. Attention is focused on the advanced OSC materials containing ZrO2, which are employed in the last generation of catalytic automotive converters.
Use of CeO2-Based Oxides in the Three Way Catalysis
KASPAR, JAN;FORNASIERO, Paolo;GRAZIANI, MAURO
1999-01-01
Abstract
In the present paper the use of CeO2-based materials in the automotive three-way catalysts (TWCs) is considered. The multiple roles of CeO2 as a TWC promoter and in particular the oxygen storage/release capacity (OSC) are critically discussed. Attention is focused on the advanced OSC materials containing ZrO2, which are employed in the last generation of catalytic automotive converters.File in questo prodotto:
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