含过渡金属HMS的合成和催化性能

利用中性伯胺（十二胺）作模板剂，合成了过渡金属Ｃｕ、Ｔｉ、Ｃｏ、Ｆｅ取代的ＨＭＳ中孔材料，ＸＲＤ和ＦＴ＝ＩＲ表征表明，Ｃｕ、Ｔｉ能有效地嵌入ＨＭＳ骨架壁中而不会造成其中孔有序度的下降；而Ｃｏ、Ｆｅ的嵌入会明显降低表面活性剂的模板组装作用，从而造成中孔结晶有序度的显著下降，催化实验结果表明：Ｃｕ－ＨＭＳ、Ｆｅ－Ｓｉｌｉｃａ是苯要不要羟基化的有效催化剂，而Ｔｉ－ＨＭＳ则是苯乙烯环氧化的有效催化剂。

Synthesis,Characterization and Catalytic Properties of Transition Metals Substituted HMS

Transition metals copper, titanium, cobalt and iron substituted hexagonal mesoporous silicas(CuHMS, TiHMS, CoHMS and FeSilica) were synthesized by using neutral dodecylamine(DDA) as templating agent. XRD and FTIR measurements indicate that the incorporations of Cu and Ti cause no deterioration of the quality of the 100 reflection of mesoporous materials, while the introduction of Co, and especially Fe obviously decrease the assembled effects of templating agent, and deteriorate the quality of the 100 reflection of mesoporous materials seriously. The catalytic tests indicate that CuHMS and FeSilica are very effective catalysts for the hydroxylation of phenol with 30% H 2O 2 in aqueous solution; and TiHMS is an effective catalyst for the epoxidation of styrene with TBHP.