Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature
At present, the development of novel catalysts with high activity Selective Catalytic Reduction (SCR) reaction at the low temperature is still a challenge. In this work, the authors prepare CeO<sub>2</sub>/quasi-MIL-101 catalysts with various amounts of deposited ceria by a double-solven...
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doaj-848770316fb14451b4e6a67559ba3d5d2020-11-25T01:12:57ZengMDPI AGCatalysts2073-43442020-01-0110114010.3390/catal10010140catal10010140Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low TemperatureMin Lu0Haili Hou1Chuanying Wei2Xiaohui Guan3Wei Wei4Guang-Sheng Wang5School of Chemical Engineering, Northeast Electric Power University, Jilin 132000, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132000, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132000, ChinaSchool of Chemical Engineering, Northeast Electric Power University, Jilin 132000, ChinaSchool of Chemistry and Chemical Engineering, Henan Engineering Center of New Energy Battery Materials, Henan Key Laboratory of Bimolecular Reorganization and Sensing, Shangqiu Normal University, Shangqiu 476000, ChinaSchool of Chemistry, Beihang University, Beijing 100191, ChinaAt present, the development of novel catalysts with high activity Selective Catalytic Reduction (SCR) reaction at the low temperature is still a challenge. In this work, the authors prepare CeO<sub>2</sub>/quasi-MIL-101 catalysts with various amounts of deposited ceria by a double-solvent method, which are characterized by X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and so on. The results show that the increase of Ce content has a great influence on the catalytic property of the catalyst. The introduction of Ce can promote the conversion between Cr<sup>3+</sup> and Cr<sup>5+</sup> and increase the proportion of lattice oxygen, which improves the activity of the catalyst. However, the catalyst will be peroxidized when the content of Ce is too high, resulting in the decline of the catalytic activity. This experiment indicates that CeO<sub>2</sub>/quasi-MIL-101 plays a significant role in the NH<sub>3</sub>-SCR process at the low temperature when the loading of Ce is 0.5%. This work has proved the potential of this kind of material in NH<sub>3</sub>-SCR process at the low temperature, providing help for subsequent studies.https://www.mdpi.com/2073-4344/10/1/140selective catalytic reductionceo<sub>2</sub>/quasi-mil-101(cr)low temperaturemetal-organic framework |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Min Lu Haili Hou Chuanying Wei Xiaohui Guan Wei Wei Guang-Sheng Wang |
spellingShingle |
Min Lu Haili Hou Chuanying Wei Xiaohui Guan Wei Wei Guang-Sheng Wang Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature Catalysts selective catalytic reduction ceo<sub>2</sub>/quasi-mil-101(cr) low temperature metal-organic framework |
author_facet |
Min Lu Haili Hou Chuanying Wei Xiaohui Guan Wei Wei Guang-Sheng Wang |
author_sort |
Min Lu |
title |
Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature |
title_short |
Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature |
title_full |
Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature |
title_fullStr |
Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature |
title_full_unstemmed |
Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NO<sub>x</sub> at Low Temperature |
title_sort |
preparation of quasi-mil-101(cr) loaded ceria catalysts for the selective catalytic reduction of no<sub>x</sub> at low temperature |
publisher |
MDPI AG |
series |
Catalysts |
issn |
2073-4344 |
publishDate |
2020-01-01 |
description |
At present, the development of novel catalysts with high activity Selective Catalytic Reduction (SCR) reaction at the low temperature is still a challenge. In this work, the authors prepare CeO<sub>2</sub>/quasi-MIL-101 catalysts with various amounts of deposited ceria by a double-solvent method, which are characterized by X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and so on. The results show that the increase of Ce content has a great influence on the catalytic property of the catalyst. The introduction of Ce can promote the conversion between Cr<sup>3+</sup> and Cr<sup>5+</sup> and increase the proportion of lattice oxygen, which improves the activity of the catalyst. However, the catalyst will be peroxidized when the content of Ce is too high, resulting in the decline of the catalytic activity. This experiment indicates that CeO<sub>2</sub>/quasi-MIL-101 plays a significant role in the NH<sub>3</sub>-SCR process at the low temperature when the loading of Ce is 0.5%. This work has proved the potential of this kind of material in NH<sub>3</sub>-SCR process at the low temperature, providing help for subsequent studies. |
topic |
selective catalytic reduction ceo<sub>2</sub>/quasi-mil-101(cr) low temperature metal-organic framework |
url |
https://www.mdpi.com/2073-4344/10/1/140 |
work_keys_str_mv |
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