▎ 摘　　要

NOVELTY - Preparing highly loaded ruthenium-manganese oxide (Ru-MnOX)/graphene denitration catalyst involves placing 2-3 g graphene in 100 mL flask, and adding 98 wt.% sulfuric acid (H2SO4) and 65-67 wt.% nitric acid (HNO3), then vibrating ultrasonically for 20-30 minutes, then under stirring and heating in oil bath, reflux treatment at 130-140 degrees C for 3-4 hours, filtering and washing with deionized water. The filter is air dried at 60-80 degrees C to obtain a graphene substrate treated with mixed acid oxidation. The graphene substrate prepared is placed in a 0.2-0.5M manganese(II) nitrate hexahydrate (Mn(NO3)2.6H2O) aqueous solution, and added urotropine dropwise, and placed in hydrothermal reaction kettle, cooled naturally, washed with deionized water, filtered, air dried, and roasted. The MnOX/graphene material is soaked in ethanol solution of nitrosyl ruthenium nitrate for 2-5 hours, vacuum condensation drying, then roasted, washed, dried, and high loaded Ru-MnOX/graphene denitration catalyst. USE - Method for preparing highly loaded Ru-MnOX/graphene denitration catalyst. ADVANTAGE - The method enables to prepared highly loaded Ru-MnOX/graphene denitration catalyst, that has extremely high conversion rate and selectivity, and has good sulfur dioxide/water resistance.