The low-temperature simultaneous detoxification of NO and CO over precious metal-free nanocomposite metal oxides

The conversion of NO and CO simultaneously is an essential approach for maintaining air purity. We prepared a cost-efficient catalyst composed of Co-Cu-Mn that showed 100% NO-CO conversion at a low temperature. According to our study, the high performance of the catalyst was attributable to CuO species formed in the composite material that synergistically interacted to produce a dual surface for NO and CO conversion reactions. The high performance of a Co-Cu-Mn catalyst for NO-CO redox conversion was demonstrated, which is attributed to the formation of CuO species that interact with one another to produce high synergy in the Co-Cu-Mn oxide system.