초록 ▼

Disclosed is a catalytic material of a calcined noble metal-doped hydrous titanium oxide with a copper promoter compound. The catalytic material is effective for NO.sub.x reduction in an oxidizing exhaust stream form a combustion process is disclosed. Also described is a device for reduction of nitr

Disclosed is a catalytic material of a calcined noble metal-doped hydrous titanium oxide with a copper promoter compound. The catalytic material is effective for NO.sub.x reduction in an oxidizing exhaust stream form a combustion process is disclosed. Also described is a device for reduction of nitrogen oxides in an exhaust stream, particularly an automotive exhaust stream, that includes a substrate coated with the activated noble-metal doped hydrous metal oxide of the invention and methods for preparing the device.

대표청구항 ▼

[ We claim:] [1.] A catalytic material, comprising an activated noble metal-doped hydrous metal oxide material having a copper promoter, wherein the noble metal is selected from the group consisting of platinum and mixtures of platinum and palladium, and further wherein the metal of the metal oxide

[ We claim:] [1.] A catalytic material, comprising an activated noble metal-doped hydrous metal oxide material having a copper promoter, wherein the noble metal is selected from the group consisting of platinum and mixtures of platinum and palladium, and further wherein the metal of the metal oxide is selected from the group consisting of titanium, zirconium, and mixtures thereof.