Carbon monoxide (CO) and nitric oxide (NO) are widely present in industrial flue gas such as sintering coking, and automobile exhaust gas. Their long-term presence in the atmosphere will endanger human health and the ecological environment. CO catalytic oxidation is a widely used CO removal technology, and catalytic reduction of NO by CO is considered to be one of the feasible technologies for collaborative removal of CO and NO in the flue gas containing both NO and CO, such as sintering and coking flue gas. Compared with expensive precious metal catalysts, transition metal composite oxides CuO-CeO₂ catalysts show good catalytic activity and stability in both CO catalytic oxidation and NO catalytic reduction by CO applications. Therefore, this article focuses on summarizing the reaction mechanism of CuO-CeO₂ catalysts in CO catalytic oxidation and NO catalytic reduction by CO and the key influencing factors of activity, such as Cu:Ce ratio, synthetic methods, calcination temperature, CeO₂ shape, O₂ content, etc., the influence of the above factors on the surface active sites of CuO-CeO₂ catalyst, surface oxygen vacancies, the interaction between Cu and Ce redox pairs, and the specific surface area of the catalyst are briefly described. The future research work is prospected to provide theoretical guidance for the optimization of CuO-CeO₂ catalyst and the promotion of its industrial application.

一氧化碳（CO）和一氧化氮（NO）广泛存在于烧结焦化等工业烟气和汽车尾气中。它们在大气中长期存在会危害人类健康和生态环境。CO催化氧化是一种应用广泛的CO脱除技术，CO催化还原NO被认为是烧结、焦化烟道等含NO和CO的烟气中CO和NO协同脱除的可行技术之一。气体。与昂贵的贵金属催化剂相比，过渡金属复合氧化物CuO-CeO ₂催化剂在CO催化氧化和CO催化还原NO时均表现出良好的催化活性和稳定性。因此，本文重点总结CuO-CeO的反应机理₂催化剂在CO催化氧化和CO催化还原NO时活性的关键影响因素，如Cu:Ce比、合成方法、煅烧温度、CeO ₂形状、O ₂含量等，上述因素的影响在CuO-CeO ₂催化剂的表面活性位点上，简要描述了表面氧空位、Cu和Ce氧化还原对之间的相互作用以及催化剂的比表面积。展望未来的研究工作，为CuO-CeO ₂催化剂的优化和工业应用的推广提供理论指导。