Selective catalytic reduction of NOx by NH3 over MoO3-promoted CeO2/TiO2 catalyst |
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| Affiliation: | 1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2. Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;3. Department of Chemical and Biomolecular Engineering, Graduate School of EEWS (WCU), Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea;1. School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;2. Key Laboratory of Vehicles Emission Control of Jiangsu Province, Center of Modern Analysis, Nanjing University, Nanjing 210093, China;3. School of Environment, Nanjing Normal University, Nanjing 210023, China;4. School of the Environment, Nanjing University, Nanjing 210093, China;5. School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China |
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| Abstract: | The addition of MoO3 enhanced the activity of CeO2/TiO2 catalyst for the selective reduction of NOx with NH3. The MoO3-promoted CeO2/TiO2 exhibited higher activity than CeO2/TiO2 even in the co-presence of H2O and SO2. This is because the introduction of Mo to the Ce10Ti catalyst can inhibit the adsorption of H2O and SO2 as well as the formation of sulfate species on the catalyst surface, thus alleviating the poisoning effect of H2O and SO2. |
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