Thermodynamic calculation for the activity and mechanism of Mn/TiO2 catalyst doped transition metals for SCR at low temperature |
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| Affiliation: | 1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China;2. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China;3. Research and Test Center of Materials, Wuhan University of Technology, Wuhan 430070, PR China;1. Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, Zhejiang University, Hangzhou 310027, China;2. Institute of Environmental Engineering, Zhejiang University, Hangzhou 310058, China |
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| Abstract: | The introduction of transition metals in Mn/TiO2 catalysts played significant roles in oxidative abstraction of hydrogen from adsorbed ammonia during the selective catalytic reduction (SCR). Thermodynamic calculation studies showed that the SCR performance was in accordance with the ammonia oxidation with transition metals, and the reaction tendency for the ammonia oxidation was decreased in the following order: CuO > Co3O4 > NiO > Fe2O3 > Cr2O3 > ZnO > La2O3 > CeO2 > ZrO2. In addition, Mn/TiO2 catalyst doped metal (Fe and Cu) oxides enhanced performance for NOx conversion, being approximately 100% at 453 K. |
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