Macrocellular Titanosilicate Monoliths as Highly Efficient Structured Olefin Epoxidation Catalysts

Smeets, Valentin;van den Biggelaar, Ludivine;Barakat, Tarek;Gaigneaux, Eric;Debecker, Damien
(2019) ChemCatChem — Vol. 11, p. 1593-1597 (2019)

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Authors
  • Smeets, Valentinorcid-logoUCLouvain
    Author
  • van den Biggelaar, LudivineUCLouvain
    Author
  • Barakat, TarekUNamur
    Author
  • Gaigneaux, Ericorcid-logoUCLouvain
    Author
  • Debecker, DamienUCLouvain
    Author
Abstract
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.
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Smeets, V., van den Biggelaar, L., Barakat, T., Gaigneaux, E., & Debecker, D. (2019). Macrocellular Titanosilicate Monoliths as Highly Efficient Structured Olefin Epoxidation Catalysts. ChemCatChem, 11, 1593-1597. https://doi.org/10.1002/cctc.201900028 (Original work published 2019)