| abstract |
A catalytic material of activated hydrous metal oxide doped with platinum, palladium, or a combination of these, and optionally containing an alkali or alkaline earth metal, that is effective for NOx reduction in an oxidizing exhaust stream from a combustion process is disclosed. A device (3) for reduction of nitrogen oxides in an exhaust stream, particularly an automotive exhaust stream (2), the device (3) having a substrate coated with the activated noble-metal doped hydrous metal oxide of the invention, is also provided. |