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Perera AS, Trogadas P, Nigra MM, Yu H, Coppens MO. Optimization of mesoporous titanosilicate catalysts for cyclohexene epoxidation via statistically guided synthesis. JOURNAL OF MATERIALS SCIENCE 2018; 53:7279-7293. [PMID: 31258177 PMCID: PMC6566288 DOI: 10.1007/s10853-018-2057-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 01/18/2018] [Indexed: 06/09/2023]
Abstract
An efficient approach to improve the catalytic activity of titanosilicates is introduced. The Doehlert matrix (DM) statistical model was utilized to probe the synthetic parameters of mesoporous titanosilicate microspheres (MTSM), in order to increase their catalytic activity with a minimal number of experiments. Synthesis optimization was carried out by varying two parameters simultaneously: homogenizing temperature and surfactant weight. Thirteen different MTSM samples were synthesized in two sequential 'matrices' according to Doehlert conditions and were used to catalyse the epoxidation of cyclohexene with tert-butyl hydroperoxide. The samples (and the corresponding synthesis conditions) with superior catalytic activity in terms of product yield and selectivity were identified. In addition, this approach revealed the limiting values of each synthesis parameter, beyond which the material becomes catalytically ineffective. This study demonstrates that the DM approach can be broadly used as a powerful and time-efficient tool for investigating the optimal synthesis conditions of heterogeneous catalysts.
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Affiliation(s)
- A. S. Perera
- Centre for Nature Inspired Engineering, University College London, Torrington Place, London, WC1E 7JE UK
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
| | - P. Trogadas
- Centre for Nature Inspired Engineering, University College London, Torrington Place, London, WC1E 7JE UK
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
| | - M. M. Nigra
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT 84112 USA
| | - H. Yu
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
| | - M.-O. Coppens
- Centre for Nature Inspired Engineering, University College London, Torrington Place, London, WC1E 7JE UK
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
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Yang XY, Chen LH, Li Y, Rooke JC, Sanchez C, Su BL. Hierarchically porous materials: synthesis strategies and structure design. Chem Soc Rev 2017; 46:481-558. [DOI: 10.1039/c6cs00829a] [Citation(s) in RCA: 839] [Impact Index Per Article: 119.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review addresses recent advances in synthesis strategies of hierarchically porous materials and their structural design from micro-, meso- to macro-length scale.
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Affiliation(s)
- Xiao-Yu Yang
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Li-Hua Chen
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Yu Li
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Joanna Claire Rooke
- Laboratory of Inorganic Materials Chemistry (CMI)
- University of Namur
- B-5000 Namur
- Belgium
| | - Clément Sanchez
- Chimie de la Matiere Condensee de Paris
- UniversitePierre et Marie Curie (Paris VI)
- Collège de France
- France
| | - Bao-Lian Su
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
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Ultrahigh mechanically stable hierarchical mordenite zeolite monolith: Direct binder-/template-free hydrothermal synthesis. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chen LH, Li XY, Rooke JC, Zhang YH, Yang XY, Tang Y, Xiao FS, Su BL. Hierarchically structured zeolites: synthesis, mass transport properties and applications. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31957h] [Citation(s) in RCA: 336] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Tiscornia I, Kumakiri I, Bredesen R, Téllez C, Coronas J. Microporous titanosilicate ETS-10 membrane for high pressure CO2 separation. Sep Purif Technol 2010. [DOI: 10.1016/j.seppur.2009.07.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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