Catalyst for exhaust gas purification

Details Catalyst for exhaust gas purification Catalyst for exhaust gas purification

2005-10-31

2010-11-23

Mayes, Melvin C (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S235000

Reexamination Certificate

active

07838461

ABSTRACT:
A mesoporous catalyst for purifying lean burn NOx emission including a mesoporous material, which substantially has pores with a diameter of 2 to 50 nm and a specific surface area of 100 to 1,400 m2/g, selected from the group consisting of mesoporous silica and mesoporous alumina, and 0.01 to 20 mass % of a catalyst carried on the mesoporous material with an average particle size of 1 to 20 nm containing platinum and/or iridium is provided.

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