Catalyst for simultaneous NO decomposition and CO oxidation unde

Details Catalyst for simultaneous NO decomposition and CO oxidation unde Catalyst for simultaneous NO decomposition and CO oxidation unde

1987-04-15

1989-06-13

Doll, John

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

502303, 502304, B01D 5336

Patent

active

048391468

ABSTRACT:
This invention relates to an automotive exhaust gas treatment catalyst composed of one or more noble metals dispersed on CeO.sub.2 -RE.sub.2 O.sub.3 carrier particles. The ceria-rare earth oxide carrier for the noble metal facilitates the simultaneous oxidation of CO and decomposition of NO. The catalyst is particularly useful when the air-fuel mixture to the automobile engine is continually cycled between fuel rich and fuel lean of stoichiometric proportions.

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