Macrocellular Titanosilicate Monoliths as Highly Efficient Structured Olefin Epoxidation Catalysts

Valentin Smeets, Ludivine van den Biggelaar, Tarek Barakat, Eric M. Gaigneaux, Damien P. Debecker

Research output: Contribution to journalArticle

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 in 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.

Original languageEnglish
Pages (from-to)1593-1597
Number of pages5
JournalChemCatChem
Volume11
Issue number6
DOIs
Publication statusPublished - 20 Mar 2019

Keywords

  • continuous flow
  • cyclohexene epoxidation
  • High Internal Phase Emulsion
  • monolith foam
  • titanosilicate

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