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Macrocellular Titanosilicate Monoliths as Highly Efficient Structured Olefin Epoxidation Catalysts

preprint
submitted on 11.01.2019 and posted on 14.01.2019 by Valentin Smeets, Ludivine van den Biggelaar, Tarek Barakat, Eric M. Gaigneaux, Damien Debecker
Self-standing macrocellular titanosilicate monolith foams are obtained using a one-pot sol-gel route and show excellent performance in the epoxidation of cyclohexene. Thanks to the High Internal Phase Emulsion (HIPE) templating method, the materials feature a high void fraction, a hierarchically porous texture and good mechanical strength. Highly dispersed Ti species can be incorporated in tetrahedral coordination the silica matrix. These characteristics allow the obtained ‘SiTi(HIPE)’ materials to reach high catalytic turnover in the epoxidation of cyclohexene. The monoliths can advantageously be used to run the reaction in continuous flow mode.

History

Email Address of Submitting Author

damien.debecker@uclouvin.be

Institution

UCLouvain

Country

Belgium

ORCID For Submitting Author

0000-0001-6500-2996

Declaration of Conflict of Interest

No conflict of interest

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