Catalyst for the combustion of diesel soot, methods for making the catalyst and methods of using the catalyst

摘要

A catalyst composition is disclosed for the reduction of soot and undesirable gaseous emissions from engine exhaust, particularly exhaust from diesel engines. The catalyst contains an alkali metal catalytic metal oxide, preferably lithium platinum oxide, in which the catalytic metal is atomically isolated. For improved performance in a diesel particulate filter, the alkali catalytic metal oxide is uniformly dispersed on an alkali metal aluminate such as lithium aluminate. Also disclosed is the catalytic device comprising this catalyst.