LAYERED AUTOMOTIVE CATALYST COMPOSITES

Provided are automotive catalyst composites having a catalytic material on a carrier, wherein the catalytic material comprises at least two layers. The first layer is deposited directly on the carrier and comprises a first palladium component supported on a first refractory metal oxide component, a...

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Bibliographic Details
Main Authors DEEBA, Michel, RUVINSKIY, Pavel, SUN, Yipeng, LUO, Tian, LEUNG, Emi, DANG, Dinh
Format Patent
LanguageEnglish
Published 26.05.2021
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Summary:Provided are automotive catalyst composites having a catalytic material on a carrier, wherein the catalytic material comprises at least two layers. The first layer is deposited directly on the carrier and comprises a first palladium component supported on a first refractory metal oxide component, a first oxygen storage component, or a combination thereof. The second layer is deposited on top of the first layer and comprises a rhodium component supported on a second refractory metal oxide component and a second palladium component supported on a second oxygen storage component, a third refractory metal oxide component or a combination thereof. Generally these catalyst composites are used as three-way conversion (TWC) catalysts. Methods of making and using the same are also provided.
Bibliography:Application Number: ZA20180000320