Effects of Fe addition on the structure and catalytic performance of mesoporous Mn/Al–SBA-15 catalysts for the reduction of NO with ammonia |
| |
| Affiliation: | 1. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China;2. Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China |
| |
| Abstract: | Mesoporous Al–SBA-15 has been synthesized by a hydrothermal method and used as a support for Mn/Al–SBA-15, Fe/Al–SBA-15, and Mn–Fe/Al–SBA-15 catalysts. XRD, N2 sorption, XPS, H2-TPR and activity tests have been used to assess the properties of catalysts. The Mn–Fe/Al–SBA-15 catalyst exhibited a higher SCR activity than Mn/Al–SBA-15 or Fe/Al–SBA-15 due to a synergistic effect between Mn and Fe. After the addition of Fe, the binding energy of Mn 2p3/2 on Mn–Fe/Al–SBA-15(573) decreased by about 0.4 eV and the Mn4 +/Mn3 + ratio decreased to 1.10. The appropriate Mn4 +/Mn3 + ratio may have a great effect on the reduction of NO over Mn–Fe/Al–SBA-15(573) catalyst. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
