A catalyst, for purifying an exhaust gas, contains at least one catalyst component from among Pt, Pd, Rh, Au, Ag and Ir, and a complex oxide of the perovskite type comprising at least two different metal elements. In the catalyst, the catalyst component is carried on the complex oxide.

Un catalyseur, pour épurer un gaz d'échappement, contient au moins un composant de catalyseur de parmi pinte, palladium, Rhésus, Au, AG et IR, et un oxyde complexe du type de perovskite comportant au moins deux éléments différents en métal. Dans le catalyseur, le composant de catalyseur est continué l'oxyde complexe.

 
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