MnO_x-CeO₂-Al₂O₃ microspheres (MSs) were successfully designed and synthesized via spray drying (SD) and easily used for monolithic honeycomb catalyst (MHC). The as-obtained MnO_x-CeO₂-Al₂O₃ (SD) catalyst exhibited a great BET surface area of 201.4 m²/g, a pore volume of 0.29 cm³/g, and an average pore diameter of 5.8 nm. Furthermore, the MnO_x-CeO₂-Al₂O₃ (SD) MSs delivered much more O_latt sits resulting in enhanced catalytic activity at low temperature. The MnO_x-CeO₂-Al₂O₃ (SD) performed excellent NO_x conversion of 97.4% and N₂ selectivity of 94.5% at 150 °C with a gas hourly space velocity (GHSV) of 15000 h^-1, and NO_x concentration of 500 ppm. Even at 50 °C and 100 °C, the titled product still exhibited great N₂ selectivity of 95.5% and 96.1%, respectively, corresponding to the NO_x conversion of 55% and 98.0%, respectively. The MnO_x-CeO₂-Al₂O₃ (SD) monolithic honeycomb catalyst (MHC) was prepared by vacuum-impregnation method. The MnO_x-CeO₂-Al₂O₃ (SD-MHC) delivered NO_x conversion of 93% at 150 °C with a GHSV of 2000 h^-1, and NO_x concentration of 500 ppm. Even at 50 °C and 100 °C, the titled product still performed NO_x conversion of 55% and 83%, respectively. The MnO_x-CeO₂-Al₂O₃ (MHC) performed great catalytic activity in the low temperature arrange from 50 to 150 °C and presented potential application in stationary industrial installations.

通过喷雾干燥（SD）成功设计合成了MnO _x -CeO ₂ -Al ₂ O ₃微球（MSs），易于用于整体式蜂窝催化剂（MHC）。所获得的MnO _x -CeO ₂ -Al ₂ O ₃（SD）催化剂显示出大BET表面积为201.4m ² / g，孔体积为0.29cm ³ / g，平均孔径为5.8nm。此外，MnO _x -CeO ₂ -Al ₂ O ₃（SD）MS传递的_油量更多导致低温下催化活性增强。MnO的_X -CeO ₂ -Al ₂ ö ₃（SD）执行优良NO _X的97.4％的转化率和N ₂的选择性在150℃下为94.5％与气时空速15000 H（GHSV）^-1，和NO _x浓度为500 ppm。即使在50℃和100℃下，标题产物仍显示出分别为95.5％和96.1％的高N ₂选择性，对应于分别为55％和98.0％的NO _x转化率。MnO _x -CeO ₂ -Al ₂ O ₃（SD）整体式蜂窝催化剂（MHC）是通过真空浸渍法制备的。MnO的_X -CeO ₂ -Al ₂ ö ₃（SD-MHC）递送NO _X的93％的转化率在150℃下以2000小时GHSV ^-1，和NO _X为500ppm的浓度。甚至在50℃和100℃，标题产物仍然没有进行_X分别为55％和83％的转化率。MnO _x -CeO ₂ -Al ₂ O ₃（MHC）在50至150°C的低温下表现出出色的催化活性，并在固定工业装置中具有潜在的应用前景。