[周继承; 阳鹏飞; 王哲] Key Laboratory of Green Catalysis and Chemical Reaction Engineering in College of Hunan Province, School of Chemistry and Chemical Engineering, Xiangtan University, Xiangtan 411105, China
[阳鹏飞] School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
语种：
中文
关键词：
一氧化氮分解;改性;耐氧性;铈;锆
关键词(英文)：
NO decomposition;modification;oxygen-resistance;ceria;zirconium
Cu/ZSM-5 catalysts were modified by adding Ce and Zr components and then characterized by O2-TPD and TG analysis. The effect of ion-exchange sequence, Ce/Zr mol ratio and reaction conditions on the catalytic performance of Ce and Zr modified Cu/ZSM-5 were investigated. The results indicated that Cu species is essential in Zr-Cu-Ce/ZSM-5 catalyst as the active sites for NO decomposition, while the modification with Ce and Zr components can significantly enhance its catalytic performance for direct decomposition of NO in the presence of oxygen and reduce the reaction temperature required for ach...
