Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System
The physicochemical properties of active components play a key role in enhancing catalytic performance. In multi-component catalysts, different components offer a wide range of structural possibilities and catalytic potential. However, determining the role of specific components in enhancing efficie...
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/14/2/131 |
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| author | Shifei Gu Chengheng Huang Xiaorong Han Qiuju Qin Donghai Mo Chen Li Yuhua You Lihui Dong Bin Li |
| author_facet | Shifei Gu Chengheng Huang Xiaorong Han Qiuju Qin Donghai Mo Chen Li Yuhua You Lihui Dong Bin Li |
| author_sort | Shifei Gu |
| collection | DOAJ |
| description | The physicochemical properties of active components play a key role in enhancing catalytic performance. In multi-component catalysts, different components offer a wide range of structural possibilities and catalytic potential. However, determining the role of specific components in enhancing efficiency may be blurry. This study synthetized a range of catalysts with various metal compositions on their external surfaces to investigate their catalytic activity on NH<sub>3</sub>-SCR. The V/CeMn/Ti catalysts exhibited exceptional catalytic efficiency and strong tolerance to SO<sub>2</sub> during the SCR process. In the system, Mn and Ce facilitated electron transfer during the catalytic removal of NO<sub>x</sub>. As an assisting agent, increased the number of active species and acidic sites, playing a crucial role in oxidizing NO to NO<sub>2</sub> and facilitating the denitrogenation reaction process at low temperatures. Further studies showed that the three ingredients exhibited unique adsorbent behaviors on the reacting gases, which provided different catalytic possibilities. This work modeled the particular catalysis of V and Ce (Mn) species, respectively, and offers experimental instruction for improving the activity and excellent tolerance to SO<sub>2</sub> by controlling active ingredients. |
| first_indexed | 2024-03-07T22:38:48Z |
| format | Article |
| id | doaj.art-92a0a9f22d3544e3b80b9b4794ed7b14 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-07T22:38:48Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-92a0a9f22d3544e3b80b9b4794ed7b142024-02-23T15:11:32ZengMDPI AGCatalysts2073-43442024-02-0114213110.3390/catal14020131Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic SystemShifei Gu0Chengheng Huang1Xiaorong Han2Qiuju Qin3Donghai Mo4Chen Li5Yuhua You6Lihui Dong7Bin Li8A State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaA State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, ChinaThe physicochemical properties of active components play a key role in enhancing catalytic performance. In multi-component catalysts, different components offer a wide range of structural possibilities and catalytic potential. However, determining the role of specific components in enhancing efficiency may be blurry. This study synthetized a range of catalysts with various metal compositions on their external surfaces to investigate their catalytic activity on NH<sub>3</sub>-SCR. The V/CeMn/Ti catalysts exhibited exceptional catalytic efficiency and strong tolerance to SO<sub>2</sub> during the SCR process. In the system, Mn and Ce facilitated electron transfer during the catalytic removal of NO<sub>x</sub>. As an assisting agent, increased the number of active species and acidic sites, playing a crucial role in oxidizing NO to NO<sub>2</sub> and facilitating the denitrogenation reaction process at low temperatures. Further studies showed that the three ingredients exhibited unique adsorbent behaviors on the reacting gases, which provided different catalytic possibilities. This work modeled the particular catalysis of V and Ce (Mn) species, respectively, and offers experimental instruction for improving the activity and excellent tolerance to SO<sub>2</sub> by controlling active ingredients.https://www.mdpi.com/2073-4344/14/2/131low-temperature NH<sub>3</sub>-SCR of NOIn-situ DRIFTSRedox propertysurface acidityvanadia-based catalysts |
| spellingShingle | Shifei Gu Chengheng Huang Xiaorong Han Qiuju Qin Donghai Mo Chen Li Yuhua You Lihui Dong Bin Li Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System Catalysts low-temperature NH<sub>3</sub>-SCR of NO In-situ DRIFTS Redox property surface acidity vanadia-based catalysts |
| title | Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System |
| title_full | Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System |
| title_fullStr | Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System |
| title_full_unstemmed | Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System |
| title_short | Improvement of NH<sub>3</sub>-SCR Performance by Exposing Different Active Components in a VCeMn/Ti Catalytic System |
| title_sort | improvement of nh sub 3 sub scr performance by exposing different active components in a vcemn ti catalytic system |
| topic | low-temperature NH<sub>3</sub>-SCR of NO In-situ DRIFTS Redox property surface acidity vanadia-based catalysts |
| url | https://www.mdpi.com/2073-4344/14/2/131 |
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