Polyvinyl alcohol templated synthese of hierarchical SAPO-11
This work reports that the polyvinyl alcohol successfully templates the intracrystal mesoporous structure of hierarchical SAPO-11 molecular sieves. The structures of prepared hierarchical SAPO-11 materials and a conventional SAPO-11 simultaneously synthesized are characterized by X-ray diffraction,...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abac3d |
| _version_ | 1797746160539009024 |
|---|---|
| author | Wenjing Zhao Hongxia Yang Zhihui Li Longli Zhang Xufeng Lin Hui Fu Zhen Liu Chuangye Wang |
| author_facet | Wenjing Zhao Hongxia Yang Zhihui Li Longli Zhang Xufeng Lin Hui Fu Zhen Liu Chuangye Wang |
| author_sort | Wenjing Zhao |
| collection | DOAJ |
| description | This work reports that the polyvinyl alcohol successfully templates the intracrystal mesoporous structure of hierarchical SAPO-11 molecular sieves. The structures of prepared hierarchical SAPO-11 materials and a conventional SAPO-11 simultaneously synthesized are characterized by X-ray diffraction, N _2 adsorption/desorption, scanning electron microscopy and high resolution transmission electron microscopy. The characterizations demonstrate that this synthesized hierarchical SAPO-11 possesses a mesopore structure with a much regular pore size distribution. Importantly, these mesopores are intracrystal but not intercrystal. The bifuntional isomerization catalyst with this hierarchical SAPO-11 as support shows a high selectivity in hydroisomerization reaction of hexane, evidencing that the catalytic selectivity is improved by introduction of mesopore structure into the SAPO-11 crystal. The templating mechanism of polyvinyl alcohol in formation of mesopores is well discussed at the ending. This work provides a potential template to prepare hierarchical catalyst materials. |
| first_indexed | 2024-03-12T15:34:00Z |
| format | Article |
| id | doaj.art-00ca3bab86b944da88618c90364cce8d |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:34:00Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-00ca3bab86b944da88618c90364cce8d2023-08-09T16:18:40ZengIOP PublishingMaterials Research Express2053-15912020-01-017808500910.1088/2053-1591/abac3dPolyvinyl alcohol templated synthese of hierarchical SAPO-11Wenjing Zhao0Hongxia Yang1Zhihui Li2Longli Zhang3Xufeng Lin4Hui Fu5Zhen Liu6Chuangye Wang7https://orcid.org/0000-0001-5965-9377Department of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaDepartment of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaDepartment of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaDepartment of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaDepartment of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaDepartment of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaSchool of Chemical Engineering, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaDepartment of Chemistry, School of Science, China University of Petroleum (East China) , Qingdao, People’s Republic of ChinaThis work reports that the polyvinyl alcohol successfully templates the intracrystal mesoporous structure of hierarchical SAPO-11 molecular sieves. The structures of prepared hierarchical SAPO-11 materials and a conventional SAPO-11 simultaneously synthesized are characterized by X-ray diffraction, N _2 adsorption/desorption, scanning electron microscopy and high resolution transmission electron microscopy. The characterizations demonstrate that this synthesized hierarchical SAPO-11 possesses a mesopore structure with a much regular pore size distribution. Importantly, these mesopores are intracrystal but not intercrystal. The bifuntional isomerization catalyst with this hierarchical SAPO-11 as support shows a high selectivity in hydroisomerization reaction of hexane, evidencing that the catalytic selectivity is improved by introduction of mesopore structure into the SAPO-11 crystal. The templating mechanism of polyvinyl alcohol in formation of mesopores is well discussed at the ending. This work provides a potential template to prepare hierarchical catalyst materials.https://doi.org/10.1088/2053-1591/abac3dpolyvinyl alcoholSAPO-11hierarchical texturetemplating mechanism |
| spellingShingle | Wenjing Zhao Hongxia Yang Zhihui Li Longli Zhang Xufeng Lin Hui Fu Zhen Liu Chuangye Wang Polyvinyl alcohol templated synthese of hierarchical SAPO-11 Materials Research Express polyvinyl alcohol SAPO-11 hierarchical texture templating mechanism |
| title | Polyvinyl alcohol templated synthese of hierarchical SAPO-11 |
| title_full | Polyvinyl alcohol templated synthese of hierarchical SAPO-11 |
| title_fullStr | Polyvinyl alcohol templated synthese of hierarchical SAPO-11 |
| title_full_unstemmed | Polyvinyl alcohol templated synthese of hierarchical SAPO-11 |
| title_short | Polyvinyl alcohol templated synthese of hierarchical SAPO-11 |
| title_sort | polyvinyl alcohol templated synthese of hierarchical sapo 11 |
| topic | polyvinyl alcohol SAPO-11 hierarchical texture templating mechanism |
| url | https://doi.org/10.1088/2053-1591/abac3d |
| work_keys_str_mv | AT wenjingzhao polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT hongxiayang polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT zhihuili polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT longlizhang polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT xufenglin polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT huifu polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT zhenliu polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 AT chuangyewang polyvinylalcoholtemplatedsyntheseofhierarchicalsapo11 |