中文摘要：

采用浸渍法制备了一系列用于甲烷选择催化还原（CH4-SCR）氮氧化物的Co/MOR催化剂。采用XRD、BET、TG-MS、H2-TPR、NH3-TPD和NO-TPD等手段对催化剂进行表征,并对其在甲烷选择催化还原氮氧化物反应中的活性进行评价。结果表明,钴物种以Co3O4尖晶石形态存在于Co/MOR催化剂中;与MOR载体相比,引入钴物种后,催化剂的酸性、氧化还原能力和对NO的吸脱附能力均发生了变化。在甲烷选择催化还原氮氧化物反应中,Co/MOR的催化活性与其氧化还原性能和对NO的吸脱附性能直接相关;其中,Co负载量为10%的Co（10）/MOR催化剂的CH4-SCR脱硝活性最好,在330℃下NO的转化率达54.2%。

英文摘要：

A series of Co/MOR catalysts w ere prepared by impregnation method and used in the selective catalytic reduction of nitric oxide w ith methane（ CH4-SCR）. These catalysts w ere characterized by XRD,BET,TG-M S,H2-TPR,NH3-TPD and NO-TPD; their performance in the CH4-SCR of NO w as investigated. The results show ed that cobalt species exist as Co3O4 spinal in the Co/MOR catalysts; the acidity and redox and NO absorption / desorption ability of the Co/MOR catalysts are changed after the incorporation of cobalt in MOR zeolite,in comparison w ith pure MOR zeolite. The catalytic performance of Co/MOR is closely related to its redox and NO adsorption / desorption ability,w hich are dependent on the cobalt loading. The Co（ 10）/MOR catalyst w ith a cobalt loading of 10% exhibits high activity in the CH4-SCR of NO; over it the conversion of nitric oxide reaches 54. 2% at 330 ℃.