环戊烯在Au-SBA-15催化剂上选择性氧化

在不添加任何助剂的条件下，将合成的Au-SBA-15介孔分子筛催化剂用于催化环戊烯液相氧化反应。探讨了反应时间、反应温度和反应压力等因素对反应的影响。结果表明，在反应时间5 h、反应温度353 K和反应压力2.5 MPa条件下，环戊烯转化率可达8.6％，环戊酮选择性达90.2％，催化剂重复使用4次，其活性基本保持不变。

Selective oxidation of cyclopentene over Au-SBA-15 catalysts

Au-SBA-15 catalyst was synthesized without addition of any promoters and used as the catalyst for selective oxidation of cyclopentene in liquid phase. Effects of reaction time, reaction temperature, reaction pressure, and other factors on the reaction were investigated. Cyclopentene conversion of 8.6% and the selectivity to cyclopentanone of 90.2% were obtained under the optimum condition (O₂ as the oxidant, 353 K, 2.5 MPa, 5 h). The catalyst could be repeatedly used for four times without remarkable loss of activity.