The Cu-Mo/ZSM-5 catalysts with different Cu/Mo ratios were prepared by wetimpregnation method, and their catalytic performance for selective catalytic reduction of NO_x wasstudied. The results showed that Cu-Mo/ZSM-5 ...The Cu-Mo/ZSM-5 catalysts with different Cu/Mo ratios were prepared by wetimpregnation method, and their catalytic performance for selective catalytic reduction of NO_x wasstudied. The results showed that Cu-Mo/ZSM-5 is a very effective catalyst for NO_x catalyticreduction with ammonia, especially when Cu/Mo molar ratio is about 1.5. It not only exhibited theextremely high catalytic activity, but also showed good stability for O_2. The bulk phase structureof Cu-Mo/ZSM-5 catalysts was determined by XRD technique, and the results indicated that there is amaximum dispersion for Cu species when Cu/Mo molar ratio is 1.5, and an interaction between Cu andMo along with HZSM-5 may be present in Cu-Mo/ZSM-5, which may possibly result in a special structurefavorable for the catalytic reduction of NO_x over Cu-Mo/ZSM-5 catalyst.展开更多
文摘The Cu-Mo/ZSM-5 catalysts with different Cu/Mo ratios were prepared by wetimpregnation method, and their catalytic performance for selective catalytic reduction of NO_x wasstudied. The results showed that Cu-Mo/ZSM-5 is a very effective catalyst for NO_x catalyticreduction with ammonia, especially when Cu/Mo molar ratio is about 1.5. It not only exhibited theextremely high catalytic activity, but also showed good stability for O_2. The bulk phase structureof Cu-Mo/ZSM-5 catalysts was determined by XRD technique, and the results indicated that there is amaximum dispersion for Cu species when Cu/Mo molar ratio is 1.5, and an interaction between Cu andMo along with HZSM-5 may be present in Cu-Mo/ZSM-5, which may possibly result in a special structurefavorable for the catalytic reduction of NO_x over Cu-Mo/ZSM-5 catalyst.
