Direct epoxidation of propylene with hydrogen peroxide over TS-1 catalysts: Effect of hydrophobicity of the catalysts

作者：Park Sunyoung; Cho Kyung Min; Youn Min Hye; Seo Jeong Gil; Jung Ji Chul; Baeck Sung Hyeon; Kim Tae Jin; Chung Young Min; Oh Seung Hoon; Song In Kyu^*

来源：Catalysis Communications, 2008, 9(15): 2485-2488.

DOI：10.1016/j.catcom.2008.07.003

• titanium silicalite-1
• polymethylmethacrylate
• polystyrene
• hydrophobicity
• propylene epoxidation

TS-1 (titanium silicalite-1) catalysts were hydrothermally synthesized in the presence of polymethylmethacrylate bead (denoted as TS-1_PMMA) and polystyrene bead (denoted as TS-1_PS) for use in the direct epoxidation of propylene with hydrogen peroxide. TS-1 catalyst was also synthesized by a hydrothermal method in the absence of polymer bead. It was revealed that TS-1_PMMA and TS-1_PS catalysts showed a better catalytic performance than TS-1 catalyst in terms of conversion of hydrogen peroxide, selectivity for propylene oxide, and yield for propylene oxide, due to their enhanced hydrophobicity. Among three catalysts, TS-1_PS with the highest hydrophobicity showed the best catalytic performance.

• 出版日期2008-9-20