07374729 is referenced by 47 patents and cites 41 patents.

Provided are an exhaust treatment catalyst and an exhaust article containing the catalyst. The catalyst comprises: (a) a carrier; (b) a first layer deposited on the carrier, said first layer comprising substantially only at least one refractive metal oxide; (c) a second layer deposited on the first layer, said second layer comprising substantially only at least one oxygen storage component and at least one binder therefor; and (d) a third layer deposited on the second layer, said third layer comprising at least one layer of one or more platinum group metal components supported on a refractory metal oxide support. Optionally, a fourth layer is deposited on the third layer wherein the fourth layer comprises one or more platinum group metal components supported on a refractory metal oxide support. As a further option, an overcoat layer may be deposited on the third or fourth layer wherein the overcoat layer comprises a catalyst poison sorbent. Also provided are methods for preparing the catalyst and methods for monitoring the exhaust storage capacity of an exhaust article containing the catalyst.

Title
Exhaust gas treatment catalyst
Application Number
10/812542
Publication Number
7374729 (B2)
Application Date
March 30, 2004
Publication Date
May 20, 2008
Inventor
Zhicheng Hu
Edison
NJ, US
Shau Lin Franklin Chen
Piscataway
NJ, US
Agent
Scott S Serrilla
Brian W Stegman
Melanie L Brown
Assignee
BASF Catalysts
NJ, US
IPC
B01J 20/00
B01J 21/00
B01J 23/00
B01D 50/00
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