The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide
The Cu/SAPO-34 catalysts were prepared via the ion exchange process for achieving improved catalytic activity. Effects of various parameters including copper ions sources, copper ions loadings and ion exchange temperature on catalyst performance of the Cu/SAPO-34 catalysts were investigated. The res...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abe6d3 |
| _version_ | 1797746695185891328 |
|---|---|
| author | Dapeng Wang Zhaokun Li Chengwen Song |
| author_facet | Dapeng Wang Zhaokun Li Chengwen Song |
| author_sort | Dapeng Wang |
| collection | DOAJ |
| description | The Cu/SAPO-34 catalysts were prepared via the ion exchange process for achieving improved catalytic activity. Effects of various parameters including copper ions sources, copper ions loadings and ion exchange temperature on catalyst performance of the Cu/SAPO-34 catalysts were investigated. The results showed that the Cu/SAPO-34 catalysts roughly maintained similar cubic-like morphology and crystalline structure with the SAPO-34 catalyst, and achieved enhanced catalytic activity. Among various copper ion sources, the Cu/SAPO-34 catalyst using Cu(CH _3 COO) _2 as copper ion source demonstrated high nitric oxide conversion rate. Increasing the copper ion loadings, the nitric oxide conversion rate of the Cu/SAPO-34 catalysts achieved significant improvement. However, when the copper ion loadings exceeded 0.01 mol, the nitric oxide conversion rate began to decline. The catalytic activity of the Cu/SAPO-34 also closely depended on ion exchange temperature. The nitric oxide conversion rate of the Cu/SAPO-34 catalyst showed a trend of first increasing and then decreasing with the improvement of ion exchange temperature, and the recommended ion exchange temperature was 60 °C. Hydrothermal aging treatment further confirmed the good stability of the Cu/SAPO-34 catalyst. Moreover, kinetic investigation was carried out, which was in agreement with the SCR results. |
| first_indexed | 2024-03-12T15:40:31Z |
| format | Article |
| id | doaj.art-c409dcd9989743c884e2b987100bc19c |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:40:31Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-c409dcd9989743c884e2b987100bc19c2023-08-09T16:00:48ZengIOP PublishingMaterials Research Express2053-15912021-01-018202550710.1088/2053-1591/abe6d3The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxideDapeng Wang0Zhaokun Li1Chengwen Song2https://orcid.org/0000-0002-3354-9898Navigation College, Dalian Maritime University , 1 Linghai Road, Dalian 116026, People’s Republic of ChinaDalian Maritime University , 1 Linghai Road, Dalian 116026, People’s Republic of ChinaCollege of Environmental Science and Engineering, Dalian Maritime University , 1 Linghai Road, Dalian 116026, People’s Republic of ChinaThe Cu/SAPO-34 catalysts were prepared via the ion exchange process for achieving improved catalytic activity. Effects of various parameters including copper ions sources, copper ions loadings and ion exchange temperature on catalyst performance of the Cu/SAPO-34 catalysts were investigated. The results showed that the Cu/SAPO-34 catalysts roughly maintained similar cubic-like morphology and crystalline structure with the SAPO-34 catalyst, and achieved enhanced catalytic activity. Among various copper ion sources, the Cu/SAPO-34 catalyst using Cu(CH _3 COO) _2 as copper ion source demonstrated high nitric oxide conversion rate. Increasing the copper ion loadings, the nitric oxide conversion rate of the Cu/SAPO-34 catalysts achieved significant improvement. However, when the copper ion loadings exceeded 0.01 mol, the nitric oxide conversion rate began to decline. The catalytic activity of the Cu/SAPO-34 also closely depended on ion exchange temperature. The nitric oxide conversion rate of the Cu/SAPO-34 catalyst showed a trend of first increasing and then decreasing with the improvement of ion exchange temperature, and the recommended ion exchange temperature was 60 °C. Hydrothermal aging treatment further confirmed the good stability of the Cu/SAPO-34 catalyst. Moreover, kinetic investigation was carried out, which was in agreement with the SCR results.https://doi.org/10.1088/2053-1591/abe6d3ion exchange methodSCRhydrothermal methodcatalytic activity |
| spellingShingle | Dapeng Wang Zhaokun Li Chengwen Song The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide Materials Research Express ion exchange method SCR hydrothermal method catalytic activity |
| title | The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide |
| title_full | The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide |
| title_fullStr | The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide |
| title_full_unstemmed | The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide |
| title_short | The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide |
| title_sort | enhanced catalytic activity of cu sapo 34 by ion exchange method for selective catalytic reduction of nitric oxide |
| topic | ion exchange method SCR hydrothermal method catalytic activity |
| url | https://doi.org/10.1088/2053-1591/abe6d3 |
| work_keys_str_mv | AT dapengwang theenhancedcatalyticactivityofcusapo34byionexchangemethodforselectivecatalyticreductionofnitricoxide AT zhaokunli theenhancedcatalyticactivityofcusapo34byionexchangemethodforselectivecatalyticreductionofnitricoxide AT chengwensong theenhancedcatalyticactivityofcusapo34byionexchangemethodforselectivecatalyticreductionofnitricoxide AT dapengwang enhancedcatalyticactivityofcusapo34byionexchangemethodforselectivecatalyticreductionofnitricoxide AT zhaokunli enhancedcatalyticactivityofcusapo34byionexchangemethodforselectivecatalyticreductionofnitricoxide AT chengwensong enhancedcatalyticactivityofcusapo34byionexchangemethodforselectivecatalyticreductionofnitricoxide |