Catalyst for removing NO as well as preparation and application of catalyst

The invention belongs to the technical field of catalysts, and particularly provides a catalyst for removing NO as well as preparation and application thereof. The catalyst comprises an active component, an auxiliary agent and a carrier, wherein the active component is copper oxide, the auxiliary agent is a multi-element metal oxide, and the carrier is an activated alumina ball; wherein the active component accounts for 3-10% of the weight of the carrier, and the auxiliary agent accounts for 3-10% of the weight of the carrier. According to the catalyst, copper oxide is used as an active component, the multi-element metal oxide auxiliary agent is added, and the catalyst has a good high-temperature NO removal effect through the synergistic catalysis of the active component and the auxiliary agent; the catalyst disclosed by the invention is simple in preparation process, convenient to operate, wide in operating temperature range, high in stability and capable of realizing large-scale industrial application. 本发明属