Tuning the NOx conversion of Cu-Fe/ZSM-5 catalyst in NH3-SCR |
| |
| Affiliation: | 1. Education Ministry Key Laboratory on Condition Monitoring and Control of Power Plant Equipment, North China Electric Power University, Beijing 102206, China;2. Institute of Energy Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China;1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China;2. State Key Laboratory of Rare Earth Resource Utilization, Jilin Province Key Laboratory of Green Chemistry and Process, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;3. International Center of Future Science, Jilin University, Changchun 130012, PR China |
| |
| Abstract: | Cu-Fe/ZSM-5 catalyst prepared by subsequent ion-exchange showed higher NOx conversion compared with Fe/ZSM-5 or Cu/ZSM-5. Presence of small amount of copper in xCu-yFe/ZSM-5 catalysts was found to be enough to improve the low temperature NOx conversion without significantly affecting the high temperature performance. Co-presence of Cu increases the reducibility of Fe and also increased strong acid sites in Cu-Fe/ZSM-5. However, no correlation between acid site strength and NOx conversion is observed. Higher NOx conversion over Cu-Fe/ZSM-5 can be correlated to the facile reduction of metal species. Thus the redox properties and NOx conversion can be tuned by changing the composition of Cu-Fe/ZSM-5 catalyst. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
