catalytic material, catalyst composite, internal combustion engine exhaust flow treatment system, and methods for treating exhaust gas and for manufacturing a catalytic material

摘要

catalytic materials for exhaust gas purifier catalyst composites comprise platinum group metal (pgm) containing catalysts whose pgm components are provided as nanoparticles and are affixed to a refractory metal oxide, which may be provided as a precursor. After calcination of the catalysts, the pgm is thermally affixed and well dispersed along the support. Excellent conversion of hydrocarbons and nitrogen oxides can be advantageously achieved using such catalysts.