Gonçalves Léa, Gimello Olinda, Bouchmella Karim, Hesemann Peter, Alauzun Johan G
ICGM, Univ Montpellier-CNRS-ENSCM 1919, Route de Mende Montpellier Cedex 05 34293 France
Nanoscale Adv. 2024 Oct 7;6(24):6358-64. doi: 10.1039/d4na00575a.
We report silicon carbide (SiC) based epoxidation catalysts constituted of a silicon carbide core and a silica/titania (SiO/TiO) shell. The catalysts were obtained surface modification of SiC microparticles and were used as heterogeneous catalysts for the epoxidation of cyclohexene using -butyl hydroperoxide or cumyl hydroperoxide as the oxidant. Conversions up to 83% and selectivities of more than 90% were obtained.
我们报道了一种基于碳化硅(SiC)的环氧化催化剂,其由碳化硅核和二氧化硅/二氧化钛(SiO/TiO)壳组成。通过对SiC微粒进行表面改性得到了这些催化剂,并将其用作非均相催化剂,以叔丁基过氧化氢或枯基过氧化氢为氧化剂,用于环己烯的环氧化反应。获得了高达83%的转化率和超过90%的选择性。