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| Selective Catalytic Reduction of NO by C3H6 over Cu-Fe-PILC |
| Author Name | Affiliation | E-mail | | CHENG Jiang-Hao | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China | | | SU Ya-Xin | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China | suyx@dhu.edu.cn | | LI Qian-Cheng | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China | | | WEN Ni-Ni | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China | | | DENG Wen-Yi | School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China | | | ZHOU Hao | Changzhou Vocational Institute of Engineering, Changzhou, Jiangsu 213164, China | | | ZHAO Bing-Tao | School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China | |
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| Abstract: 1.0Fe-PILC was prepared by ion-exchange method with Na-Mont. nCu-Fe-PILC with different copper loadings were prepared by ultrasonic impregnation method, and used for the selective catalytic reduction of NO by C3H6 under oxygen-rich conditions. The microstructure and physicochemical properties of the catalysts were characterized by N2 adsorption-desorption, XRD, UV-Vis, H2-TPR and Py-FTIR, and the catalytic reaction mechanism was further explained. The results showed that the introduction of Cu improved the activity of the medium and low temperature and the resistance to H2O and SO2, among which more than 69.8% NO conversion at below 300℃, above 99% NO conversion after 400℃ and good resistance to H2O and SO2 were achieved by 9Cu-Fe-PILC. XRD and N2 adsorption-desorption results indicated that the SCR activity of the catalysts was related to the adsorption capacity and the supported active components. UV-Vis studies showed that 9Cu-Fe-PILC got strong activity at the medium and low temperature, which was related to its more isolated Cu2+. The H2-TPR results showed that the nCu-Fe-PILC modified by Cu had a better redox ability at the medium and low temperature compared with 1.0Fe-PILC. The results of Py-FTIR indicated that the surface of nCu-Fe-PILC contained both Lewis acid and Brønsted acid. Lewis acid was the main factor affecting the activity of SCR. |
| Keywords: C3H6 selective catalytic reduction of NO nCu-Fe-PILC pillared clay |
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| CHENG Jiang-Hao,SU Ya-Xin,LI Qian-Cheng,WEN Ni-Ni,DENG Wen-Yi,ZHOU Hao,ZHAO Bing-Tao.Selective Catalytic Reduction of NO by C3H6 over Cu-Fe-PILC[J].Chinese Journal of Inorganic Chemistry,2019,35(12):2291-2300. |
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