Patent ID: 7033969
Filing Date: 2006-04-25
Classification: B01D,B01J,F01N,Y02T

Abstract:
1. A porous material for use in the catalytic conversion of exhaust gases comprising a first porous structure, a second porous structure, and an oxidation catalyst capable of catalyzing the oxidation of NO to NO 2 in the presence of oxygen and catalyzing the oxidation of a reducing agent, said oxidation catalyst enclosed within said first porous structure, said first porous structure including pores having dimensions such that said reducing agent is sterically prevented from contacting said oxidation catalyst, whereby said oxidation catalyst primarily catalyzes said oxidation of said NO to NO 2 as compared to said oxidation of said reducing agent during the catalytic conversion of said exhaust gases, said second porous structure being substantially free of said oxidation catalyst.