| abstract |
Disclosed is a three-way catalyst article and its use in an exhaust system for an internal combustion engine. A catalyst article for treating exhaust gas comprises: a carrier comprising an inlet end, an outlet end and having an axial length L; a first catalytic zone beginning at the inlet end and extending less than the axial length L, wherein the first catalytic zone comprises a first palladium component; a second catalytic zone beginning at the outlet end and extending less than the axial length L, wherein the second catalytic zone comprises a second palladium component; beginning at the outlet end and extending less than the axial length A third catalytic zone of L, wherein the third catalytic zone comprises a third rhodium component; and wherein the third catalytic zone is overlying the second catalytic zone. |