In this work, three-dimensionally ordered macroporous-mesoporous SiO₂ (3DOM-m SiO₂) materials were synthesized by the mesoporous template (P123)-assisted colloidal crystal template (CCT) method and the preparation conditions of 3DOM-m SiO₂ were investigated. A series of novel MnMO_x/3DOM-m SiO₂ (M: Fe, Co, Ni, Cu, Zn, La, Ce) catalysts were successfully prepared by a facile incipient-wetness impregnation method. The as-prepared catalysts were characterized by means of N₂-adsorption-desorption isotherms, XRD, SEM, TEM, H₂-TPR and O₂-TPD and so on. For the synthesis of 3DOM-m SiO₂, the suitable conditions, whose reaction temperature is 45 °C, the ratio of P123 to TEOS is 0.533 and ratio of water to ethanol is 0.5, were obtained by modifying reaction conditions. The as-prepared MnMO_x/3DOM-m SiO₂ catalysts also maintain well-defined macroporous and mesoporous structures after the loading process. Meanwhile, they exhibit good catalytic performance for soot combustion. Among the studied catalysts, MnCeO_x/3DOM-m SiO₂ catalyst give the best catalytic performance and its T₁₀, T₅₀, T₉₀ and S^m_CO2 are 285, 355, 393 °C and 98.8 %, respectively.

本文采用介孔模板（P123）辅助胶体晶体模板（CCT）法合成了三维有序的大孔介孔SiO ₂（3DOM-m SiO ₂）材料，制备了3DOM-m SiO _2的条件。调查。采用简便的初湿浸渍法成功制备了一系列新型的MnMO _x / 3DOM-m SiO ₂（M：Fe，Co，Ni，Cu，Zn，La，Ce）催化剂。通过N _2-吸附-脱附等温线，XRD，SEM，TEM，H ₂ -TPR和O ₂ -TPD等对所制备的催化剂进行表征。用于合成3DOM-m SiO ₂，通过改变反应条件获得了合适的条件，其反应温度为45℃，P123与TEOS的比例为0.533，水与乙醇的比例为0.5。在负载过程之后，所制备的MnMO _x / 3DOM-m SiO ₂催化剂还保持了明确的大孔和中孔结构。同时，它们表现出良好的烟灰燃烧催化性能。在研究的催化剂中，MnCeO _x / 3DOM-m SiO ₂催化剂具有最佳的催化性能，其T ₁₀，T ₅₀，T ₉₀和S ^m _{CO 2}分别为285、355、393°C和98.8％。