Léa Gonçalves, Olinda Gimello, Karim Bouchmella, Peter Hesemann, Johan G Alauzun
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Titanium dioxide functionalized silicon carbide phases as heterogeneous epoxidation catalysts.
We report silicon carbide (SiC) based epoxidation catalysts constituted of a silicon carbide core and a silica/titania (SiO2/TiO2) shell. The catalysts were obtained via surface modification of SiC microparticles and were used as heterogeneous catalysts for the epoxidation of cyclohexene using tert-butyl hydroperoxide or cumyl hydroperoxide as the oxidant. Conversions up to 83% and selectivities of more than 90% were obtained.
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