MULTIFUNCTIONAL CATALYSTS, CONTAINING CERIUM AND URANIUM, AND AT LEAST ONE METAL FOR THE CONVERSION OF POLLUTANTS EMITTED BY INTERNAL COMBUSTION ENGINES AND THEIR PREPARATIONS

摘要

A multifunctional catalyst containing cerium, uranium and at least one metal, for the conversion of the contaminants emitted by internal combustion engines, and their preparations. …??This catalyst comprises a porous layer containing… - from approximately 20% to approximately 99% of at least one refractory oxide… - from approximately 0.8% to approximately 70% of at least one cerium oxide,… - from approximately 0.1% to approximately 50% of at least one uranium oxide,… - from approximately 0.1% to approximately 20% of a metal chosen from the group made up of Pt, Rh, Pd, Ru, Ir, Au and mixtures thereof. …??Application to the catalytic exhaust industry.