1
|
Fu K, Li G, Xu F, Dai T, Su W, Wang H, Li T, Wang Y, Wang J. Nano-Cavities within Nano-Zeolites: The Influencing Factors of the Fabricating Process on Their Catalytic Activities. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1923. [PMID: 37446438 DOI: 10.3390/nano13131923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023]
Abstract
Titanium silicalite-1 (TS-1) is a milestone heterogeneous catalyst with single-atom tetrahedral titanium incorporated into silica framework for green oxidation reactions. Although TS-1 catalysts have been industrialized, the strategy of direct hydrothermal synthesis usually produces catalysts with low catalytic activities, which has still puzzled academic and industrial scientists. Post-treatment processes were widely chosen and were proven to be an essential process for the stable production of the high-activity zeolites with hollow structures. However, the reasons why post-treatment processes could improve catalytic activity are still not clear enough. Here, high-performance hollow TS-1 zeolites with nano-sized crystals and nano-sized cavities were synthesized via post-treatment of direct-synthesis nano-sized TS-1 zeolites. The influencing factors of the fabricating processes on their catalytic activities were investigated in detail, including the content of alkali metal ions, the state of titanium centers, hydrophilic/hydrophobic properties, and accessibility of micropores. The post-treatment processes could effectively solve these adverse effects to improve catalytic activity and to stabilize production. These findings contribute to the stable preparation of high-performance TS-1 catalysts in both factories and laboratories.
Collapse
Affiliation(s)
- Kairui Fu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Geng Li
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Fulin Xu
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Tiantong Dai
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Wen Su
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hao Wang
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Tianduo Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yunan Wang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Jingui Wang
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| |
Collapse
|
2
|
Study on the epoxidation of olefins with H2O2 catalyzed by biquaternary ammonium phosphotungstic acid. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
3
|
Peng R, Wan Z, Lv H, Guan Y, Xu H, Wu P. Al-Modified Ti-MOR as a robust catalyst for cyclohexanone ammoximation with enhanced anti-corrosion performance. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01396c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The skeleton desilication accompanied by Ti active sites leaching accounts for the dominant chemical deactivation reasons in the alkali liquid-phase ammoximation, which could be retarded by creating a protective Al-rich shell.
Collapse
Affiliation(s)
- Rusi Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Zhipeng Wan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Huanzhi Lv
- Zhejiang JRT New Material Co. Ltd, Fuling Rd. 1567, Nanming Street, Liandu District, Lishui, 323000, Zhejiang Province, China
| | - Yejun Guan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| |
Collapse
|
4
|
Direct Synthesis of Ti-Containing CFI-Type Extra-Large-Pore Zeolites in the Presence of Fluorides. Catalysts 2019. [DOI: 10.3390/catal9030257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Ti-containing zeolites showed extremely high activity and selectivity in numerous friendly environmental oxidation reactions with hydrogen peroxide as a green oxidant. It will be in high demand to synthesize Ti-containing crystalline extra-large-pore zeolites due to the severe restrictions of medium-pore and/or large-pore zeolites for bulky reactant oxidations. However, the direct synthesis of extra-large-pore Ti-zeolites was still challengeable. Here, we firstly report a strategy to directly synthesize high-performance Ti-containing CFI-type extra-large-pore (Ti-CFI) zeolites assisted with fluorides. The well-crystallized Ti-CFI zeolites with framework titanium species could be synthesized in the hydrofluoric acid system with seed or in the ammonium fluoride system without seed, which showed higher catalytic activity for cyclohexene oxidation than that synthesized from the traditional LiOH system.
Collapse
|
5
|
Ikehara Y, Ohno Y, Inagaki S, Kubota Y. Preparation of MSE-type Titanosilicate via Crystallization of Titanoaluminosilicate and Its Catalytic Use for Selective Oxidation of Phenol Using H2O2. CHEM LETT 2017. [DOI: 10.1246/cl.170832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuya Ikehara
- Division of Materials Science and Chemical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501
| | - Yuya Ohno
- Division of Materials Science and Chemical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501
| | - Satoshi Inagaki
- Division of Materials Science and Chemical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501
| | - Yoshihiro Kubota
- Division of Materials Science and Chemical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501
| |
Collapse
|
6
|
Werner A, Bludovsky P, Selzer C, Koch U, Giebeler L, Oswald S, Kaskel S. Hierarchical Ti-Beta Obtained by Simultaneous Desilication and Titanation as an Efficient Catalyst for Cyclooctene Epoxidation. ChemCatChem 2017. [DOI: 10.1002/cctc.201700633] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anja Werner
- Institute of Inorganic Chemistry; Department of Chemistry and Food Chemistry; TU Dresden; Bergstr. 66 01069 Dresden Germany
| | - Paul Bludovsky
- Institute of Inorganic Chemistry; Department of Chemistry and Food Chemistry; TU Dresden; Bergstr. 66 01069 Dresden Germany
| | - Carolin Selzer
- Institute of Inorganic Chemistry; Department of Chemistry and Food Chemistry; TU Dresden; Bergstr. 66 01069 Dresden Germany
| | - Ulrike Koch
- Institute of Inorganic Chemistry; Department of Chemistry and Food Chemistry; TU Dresden; Bergstr. 66 01069 Dresden Germany
| | - Lars Giebeler
- Institute for Complex Materials; Leibniz-Institute for Solid State and Materials Research (IFW) e.V.; Helmholtz-Str. 20 01069 Dresden Germany
| | - Steffen Oswald
- Institute for Complex Materials; Leibniz-Institute for Solid State and Materials Research (IFW) e.V.; Helmholtz-Str. 20 01069 Dresden Germany
| | - Stefan Kaskel
- Institute of Inorganic Chemistry; Department of Chemistry and Food Chemistry; TU Dresden; Bergstr. 66 01069 Dresden Germany
- Fraunhofer Institute for Material and Beam Technology (IWS); Winterbergstr. 28 01277 Dresden Germany
| |
Collapse
|
7
|
Ge T, Hua Z, Lv J, Zhou J, Guo H, Zhou J, Shi J. Hydrophilicity/hydrophobicity modulated synthesis of nano-crystalline and hierarchically structured TS-1 zeolites. CrystEngComm 2017. [DOI: 10.1039/c6ce02435a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
8
|
Wang Y, Xiao FS. Understanding Mechanism and Designing Strategies for Sustainable Synthesis of Zeolites: A Personal Story. CHEM REC 2016; 16:1054-66. [DOI: 10.1002/tcr.201500255] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Yeqing Wang
- Department of Chemistry; Zhejiang University; Tianmushan Road 148 Hangzhou 310028 P. R. China
| | - Feng-Shou Xiao
- Department of Chemistry; Zhejiang University; Tianmushan Road 148 Hangzhou 310028 P. R. China
| |
Collapse
|