MULTI-TRANSITION METAL DOPED COPPER-COBALT SPINEL CATALYST MATERIAL FOR NOX DECOMPOSITION

摘要

Catalysts including multi-transition metal doped copper-cobalt spinel mixed oxide catalyst materials for direct NO_x decomposition with selectivity to N₂ from combustion engine exhaust, while minimizing formation of the N₂O product. In one example, the catalyst may include a ternary zinc-doped copper-cobalt spinel material or a quaternary manganese+zinc doped copper-cobalt spinel material. The catalysts are effective for reducing NO to N₂ at suitable temperatures of 350-500° C., with and without excess O₂ presence.