硝酸、己二酸的工业生产和机动车尾气排放大量的N2O，对大气环境和人体健康造成严重的危害。直接催化分解N2O是净化上述N2O污染应用最为广泛的技术。然而，传统催化剂的活性却被与N2O共存的O2、H2O、CO2、SOx或NOx等杂质气体强烈抑制，难以实现N2O的低成本高效率消除。针对此问题，本项目拟从催化剂的微观结构设计出发，以Co3O4为活性基体，有针对性地选择抗杂质气体潜质好的稀散元素Re、Ga、Ge或In作为助剂，构筑具有特殊三维结构、高催化活性晶面的RSE/Co3O4氧化亚氮净化催化剂。利用高催化活性晶面的暴露和稀散元素助剂与三维Co3O4基体之间的相互作用，提高催化剂的低温活性、催化稳定性和对杂质气体的抗性。此外，还要系统地剖析上述杂质气体在反应过程中对催化剂活性的抑制机理。本项目可为钴基催化剂催化消除上述污染源中N2O的实际应用提供理论依据和技术储备，具有重要的科学价值和实际意义。

N2O, emitted from nitric acid, adipic acid plant and motor vehicle engines, can induce severe atmospheric environment pollution and human health damage. Direct catalytic N2O decomposition is the most widely used technology to eliminate the above N2O pollution. However, the activity of traditional catalysts was strongly suppressed by the impurity gases such as O2, H2O, CO2, SOx, or NOx coexisting with N2O, which make it difficult to achieve high efficiency elimination of N2O pollution. In view of this problem, the study intends use Co3O4 as the active component and Re, Ga, Ge or In with good impurity gases resistance potential as additives to build RSE/Co3O4 catalysts with 3D structure and high catalytic activity crystal plane. Using the exposure of highly catalytically active crystal plane and the interaction between RSE additive and 3D Co3O4 improve the activity, catalytic stability, and resistance to impurity gases of the obtained catalyst. In addition, the inhibition mechanism of the above impurity gas on the catalyst activity during the reaction is also systematically analyzed. The study will be meaningful and helpful for the practical application of cobalt-based catalysts in purification process of N2O from nitric acid plant, adipic acid plant exhausts or automobile exhausts.