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Effect of ceria doping on catalytic activity and SO 2 resistance of 1 MnO x / TiO 2 catalysts for selective catalytic reduction of NO with 2 NH 3 at low temperature 3
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Qian Zhou, Jianjian Zhang, Jianchao Feng, Yuheng Jin, Jing |
| Copyright Year | 2020 |
| Abstract | Effect of ceria doping on catalytic activity and SO2 resistance of 1 MnOx/TiO2 catalysts for selective catalytic reduction of NO with 2 NH3 at low temperature 3 Qiulin Wang, Jianjian Zhou, Jianchao Zhang, Hao Zhu, Yuheng Feng ∗, Jing Jin 4 1 School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 5 200093, China 6 2 Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, University of 7 Shanghai for Science and Technology, Shanghai 200093, China 8 3 Thermal and Environmental Engineering Institute, Tongji University, Shanghai 200092, China 9 Abstract Low temperature NH3-SCR of NO is strongly needed due to its availability in 10 industrial furnaces and energy-conserving feature. MnOx-CeO2/TiO2 (MnCe/Ti) with different Ce 11 doping contents were prepared and their catalytic activities for NH3-SCR under 100-400 were 12 experimentally examined. The results suggest that addition a small amount of Ce (Ce/Ti mole 13 ratio=0.05) improves the exposure of Mn atoms on catalyst surface and exhibits highest NH314 SCR activity at 100-200 , on which above 98% of NO is abated at 175 . Further increase the 15 Ce contents decreases the catalyst performance instead. Moreover, NH3-SCR of NO under 16 oxidizing or reducing conditions confirms the oxygen species bounded to the exposed Mn atoms 17 are easier to be released and the resulted oxygen vacancies are more likely to be replenished by 18 O2 at low temperature. In addition, the SO2 resistance of MnCe/Ti is also enhanced by Ce 19 modification, mainly due to the inhibition of the accumulation of ammonium sulfates and the 20 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.aaqr.org/files/article/9090/AAQR-19-10-OA-0546_accepted.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
