title: Immersion calorimetry as a tool to evaluate the catalytic performance of titanosilicate materials in the epoxidation of cyclohexene.
abstract: Different types of titanosilicates are synthesized, structurally characterized, and subsequently catalytically tested in the liquid-phase epoxidation of cyclohexene. The performance of three types of combined zeolitic/mesoporous materials is compared with that of widely studied Ti-grafted-MCM-41 molecular sieve and the TS-1 microporous titanosilicate. The catalytic test results are correlated with the structural characteristics of the different catalysts. Moreover, for the first time, immersion calorimetry with the same substrate molecule as in the catalytic test reaction is applied as an extra means to interpret the catalytic results. A good correlation between catalytic performance and immersion calorimetry results is found. This work points out that the combination of catalytic testing and immersion calorimetry can lead to important insights into the influence of the materials structural characteristics on catalysis. Moreover, the potential of using immersion calorimetry as a screening tool for catalysts in epoxidation reactions is shown.
authors.affiliation: Laboratory of Adsorption and Catalysis, Department of Chemistry, University of Antwerp, CDE, Universiteitsplein 1, B-2610 Wilrijk, Belgium. jarian.vernimmen@ua.ac.be
authors.forename: Jarian
authors.initials: J
authors.lastname: Vernimmen
authors.forename: Matteo
authors.initials: M
authors.lastname: Guidotti
authors.forename: Joaquin
authors.initials: J
authors.lastname: Silvestre-Albero
authors.forename: Erika O
authors.initials: EO
authors.lastname: Jardim
authors.forename: Myrjam
authors.initials: M
authors.lastname: Mertens
authors.forename: Oleg I
authors.initials: OI
authors.lastname: Lebedev
authors.forename: Gustaaf
authors.initials: G
authors.lastname: Van Tendeloo
authors.forename: Rinaldo
authors.initials: R
authors.lastname: Psaro
authors.forename: Francisco
authors.initials: F
authors.lastname: Rodríguez-Reinoso
authors.forename: Vera
authors.initials: V
authors.lastname: Meynen
authors.forename: Pegie
authors.initials: P
authors.lastname: Cool