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首页> 外文会议>3rd International Mesostructured Materials Symposium Jul 8-11, 2002 Jeju, Korea >Stable ordered mesoporous titanosilicates with active catalytic sites
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Stable ordered mesoporous titanosilicates with active catalytic sites

机译：具有活性催化位点的稳定有序介孔钛硅酸盐

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摘要

Stable ordered mesoporous titanosilicates with highly active catalytic sites (MTS-9) have been successfully synthesized from assembly of pre-formed titanosilicate precursors with polymer surfactant (P123) in strongly acidic media. Mesoporous MTS-9 shows good hydrothermal stability in boiling water (over 120 hours). Catalytic data show that MTS-9 is very active catalyst in catalytic conversion of both small molecule of phenol and bulky molecule of 2,3,6-trimethylphenol. The MTS-9 samples were characterized with infrared, UV-Raman, and TEM techniques. The results suggest that the good hydrothermal stability of MTS-9 is attributed to thicker mesoporous wall and zeolite-like connectivity of TO_4 (T=Si, Ti) in the mesostructure. The high catalytic activity of MTS-9 are due to the TS-1-like enviroment of the Ti species in MTS-9.
机译：具有高活性催化位点的稳定有序介孔钛硅酸盐（MTS-9）已通过在强酸性介质中将预形成的钛硅酸盐前体与聚合物表面活性剂（P123）组装而成功合成。中孔MTS-9在沸水中（超过120小时）显示出良好的水热稳定性。催化数据表明，MTS-9在小分子苯酚和大分子2,3,6-三甲基苯酚的催化转化中是非常活泼的催化剂。 MTS-9样品用红外，紫外拉曼和TEM技术进行了表征。结果表明，MTS-9的良好水热稳定性归因于介孔结构中厚的介孔壁和TO_4（T = Si，Ti）的沸石状连通性。 MTS-9的高催化活性归因于MTS-9中Ti物种的TS-1样环境。

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