A Novel Cu-Mo/ZSM-5 Catalyst for NOx Catalytic Reduction with Ammonia

被引:1
|
作者
Zhe Li
机构
关键词
nitrogen oxide; selective catalytic reduction; copper; molybdenum; ZSM-5; catalyst;
D O I
暂无
中图分类号
O643.321 [];
学科分类号
081705 ;
摘要
The Cu-Mo/ZSM-5 catalysts with different Cu/Mo ratios were prepared by wet impregnation method, and their catalytic performance for selective catalytic reduction of NOx was studied. The results showed that Cu-Mo/ZSM-5 is a very effective catalyst for NOx catalytic reduction with ammonia, especially when Cu/Mo molar ratio is about 1.5. It not only exhibited the extremely high catalytic activity, but also showed good stability for O2. The bulk phase structure of Cu-Mo/ZSM-5 catalysts was determined by XRD technique, and the results indicated that there is a maximum dispersion for Cu species when Cu/Mo molar ratio is 1.5, and an interaction between Cu and Mo along with HZSM-5 may be present in Cu-Mo/ZSM-5, which may possibly result in a special structure favorable for the catalytic reduction of NOx over Cu-Mo/ZSM-5 catalyst.
引用
收藏
页码:115 / 118
页数:4
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