| abstract |
The present invention relates to a three-way catalytic article and its use in an exhaust system for internal combustion engines. The catalytic article for the treatment of exhaust gas comprises: a substrate as well as a catalytic region on the substrate; the catalytic region comprising a platinum group metal component (PGE), an oxide and a rare earth metal component, the oxide being an inorganic oxide, an oxygen storage component (OSC) or a mixture of these; the rare earth element metal component concentration per element on the oxide surface per unit surface area of the oxide is from 1 μmol / m 2 to 20 μmol / m 2 . |