Layered automotive catalyst composites
Patents
| Language: |
Английский |
| Type: |
Invention |
| Number |
US 10,512,898 B2 |
| Request number: |
15/738,858 |
| Request date: |
Jun 24, 2016 |
| patent.field.start_date: |
|
| Registration date: |
Dec 24, 2019 |
| patent.field.request_publication_date: |
|
| Authors |
Deeba M.
,
Sun Y.
,
Luo T.
,
Leung E.
,
Ruvinskiy P.
,
Dang D.
|
| Affiliations |
| 1 |
BASF Corporation, Florham Park, NJ (US)
|
|
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.