CPC B01J 23/63 (2013.01) [B01J 21/04 (2013.01); F01N 3/101 (2013.01); F01N 2370/02 (2013.01); F01N 2510/0684 (2013.01)] | 11 Claims |
1. A catalyst article for treating exhaust gas comprising:
a substrate;
a first catalytic region on the substrate, wherein the first catalytic region comprises a first PGM component, and a first inorganic oxide; and
a second catalytic region on the substrate, wherein the second catalytic region comprises a second PGM component, and a second inorganic oxide;
wherein at least one of the first inorganic oxide and the second inorganic oxide is doped with 10-30% dopant; and
wherein the first inorganic oxide is alumina.
|