Highly 3D ordered honeycomb-shaped xCuO⋅Mn₂O₃ (CuO content (x) = 10, 20, and 30 wt%) catalysts with various CuO contents were synthesized by adopting a colloidal crystal template method with poly(methyl methacrylate) (PMMA) as template, and the as-prepared catalysts were used in oxidation of CO. The catalysts possessed a macro-mesoporous structure. The catalytic performance at low temperatures improved significantly with a rise in CuO content. The light-off temperature (10 % conversion) and the temperature for CO complete conversion were 71 and 98 ^oC over 30 wt% CuO⋅Mn₂O₃, respectively. Good stability of the 30 wt% CuO⋅Mn₂O₃ catalyst was also observed under the dry and wet (in the presence of water vapor) conditions. It is concluded that high catalytic activity of 30 wt.% CuO.Mn₂O₃ was related to its unique pore structure, high oxygen adspecies concentration, and oxygen vacancy.

通过采用聚甲基丙烯酸甲酯（PMMA）的胶体晶体模板法合成了具有各种CuO含量的高3D有序蜂窝状xCuO·Mn ₂ O ₃（CuO含量（x）= 10、20和30 wt％）催化剂）作为模板，并将所制备的催化剂用于CO的氧化。该催化剂具有大中观结构。随着CuO含量的增加，低温下的催化性能显着提高。起燃温度（10％转化率）和对CO完全转化温度分别为71和98 ^ö下于30％（重量）CuO⋅Mn ₂ ö ₃分别。30 wt％CuO·Mn ₂ O _3的良好稳定性在干燥和潮湿（在水蒸气存在下）条件下也观察到催化剂。结论是：30 wt。％CuO.Mn ₂ O _3的高催化活性与其独特的孔结构，高的氧形态浓度和氧空位有关。