CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts
Zeolites have many applications in the petrochemical and fine chemical industry and their functionalization does expand the spectrum of potentials. However, the integration of functional nanocrystals into zeolite frameworks with controlled size, dispersion, and crystallization behavior still remains...
| Main Authors: | , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/137815 |
| _version_ | 1826109459020120064 |
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| author | Li, Bin Yildirim, Erol Li, Wei Qi, Dianpeng Yu, Jiancan Wei, Jiaqi Liu, Zhiyuan Sun, Zhenkun Liu, Yong Kong, Biao Xue, Zhaoteng Liu, Zhuangjian Yang, Shuo-Wang Chen, Xiaodong Zhao, Dongyuan |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Li, Bin Yildirim, Erol Li, Wei Qi, Dianpeng Yu, Jiancan Wei, Jiaqi Liu, Zhiyuan Sun, Zhenkun Liu, Yong Kong, Biao Xue, Zhaoteng Liu, Zhuangjian Yang, Shuo-Wang Chen, Xiaodong Zhao, Dongyuan |
| author_sort | Li, Bin |
| collection | NTU |
| description | Zeolites have many applications in the petrochemical and fine chemical industry and their functionalization does expand the spectrum of potentials. However, the integration of functional nanocrystals into zeolite frameworks with controlled size, dispersion, and crystallization behavior still remains a significant challenge. Here, a new synthesis of magnetic functioned ZSM-5 zeolite catalysts via a CoFe2O4 nanocrystal mediated crystallization strategy is reported. It is found that high crystallinity of CoFe2O4 nanocrystals results in a well-dispersed encapsulation of them into a single-crystal of ZSM-5 due to non-further-grown nanocrystals during the fast ZSM-5 growth. On the contrary, low crystallinity of CoFe2O4 nanocrystals leads to the polycrystalline zeolite growth due to the secondary growth of nanocrystals accompanied by the zeolite crystallization and large lattice mismatch between them. The successful encapsulation of small CoFe2O4 nanocrystals (≈4 nm) into single crystals lies on the preattachment of them into solid silica gel. During the growth of ZSM-5 crystals, no secondary growth of nanocrystals happens and its motion is restricted. The encapsulation of magnetic CoFe2O4 nanocrystals not only endows magnetic function into zeolites for the first time, but also does not impact catalytic performance of ZSM-5 in acetalization of cyclohexanone with methanol, which is highly promising in catalytic industries. |
| first_indexed | 2024-10-01T02:18:34Z |
| format | Journal Article |
| id | ntu-10356/137815 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:18:34Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1378152023-07-14T15:54:10Z CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts Li, Bin Yildirim, Erol Li, Wei Qi, Dianpeng Yu, Jiancan Wei, Jiaqi Liu, Zhiyuan Sun, Zhenkun Liu, Yong Kong, Biao Xue, Zhaoteng Liu, Zhuangjian Yang, Shuo-Wang Chen, Xiaodong Zhao, Dongyuan School of Materials Science & Engineering Engineering::Materials Catalysis Crystallization Zeolites have many applications in the petrochemical and fine chemical industry and their functionalization does expand the spectrum of potentials. However, the integration of functional nanocrystals into zeolite frameworks with controlled size, dispersion, and crystallization behavior still remains a significant challenge. Here, a new synthesis of magnetic functioned ZSM-5 zeolite catalysts via a CoFe2O4 nanocrystal mediated crystallization strategy is reported. It is found that high crystallinity of CoFe2O4 nanocrystals results in a well-dispersed encapsulation of them into a single-crystal of ZSM-5 due to non-further-grown nanocrystals during the fast ZSM-5 growth. On the contrary, low crystallinity of CoFe2O4 nanocrystals leads to the polycrystalline zeolite growth due to the secondary growth of nanocrystals accompanied by the zeolite crystallization and large lattice mismatch between them. The successful encapsulation of small CoFe2O4 nanocrystals (≈4 nm) into single crystals lies on the preattachment of them into solid silica gel. During the growth of ZSM-5 crystals, no secondary growth of nanocrystals happens and its motion is restricted. The encapsulation of magnetic CoFe2O4 nanocrystals not only endows magnetic function into zeolites for the first time, but also does not impact catalytic performance of ZSM-5 in acetalization of cyclohexanone with methanol, which is highly promising in catalytic industries. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-04-15T05:18:56Z 2020-04-15T05:18:56Z 2018 Journal Article Li, B., Yildirim, E., Li, W., Qi, D., Yu, J., Wei, J., . . ., Zhao, D. (2018). CoFe2O4 Nanocrystals Mediated Crystallization Strategy for Magnetic Functioned ZSM‐5 Catalysts. Advanced Functional Materials, 28(32), 1802088-. doi:10.1002/adfm.201802088 1616-301X https://hdl.handle.net/10356/137815 10.1002/adfm.201802088 2-s2.0-85051113691 32 28 en Advanced Functional Materials © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Functional Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. application/pdf |
| spellingShingle | Engineering::Materials Catalysis Crystallization Li, Bin Yildirim, Erol Li, Wei Qi, Dianpeng Yu, Jiancan Wei, Jiaqi Liu, Zhiyuan Sun, Zhenkun Liu, Yong Kong, Biao Xue, Zhaoteng Liu, Zhuangjian Yang, Shuo-Wang Chen, Xiaodong Zhao, Dongyuan CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts |
| title | CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts |
| title_full | CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts |
| title_fullStr | CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts |
| title_full_unstemmed | CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts |
| title_short | CoFe2O4 nanocrystals mediated crystallization strategy for magnetic functioned ZSM-5 catalysts |
| title_sort | cofe2o4 nanocrystals mediated crystallization strategy for magnetic functioned zsm 5 catalysts |
| topic | Engineering::Materials Catalysis Crystallization |
| url | https://hdl.handle.net/10356/137815 |
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