中文摘要：

超微孔结构材料的孔径（1～2nm）介于微孔和介孔孔径之间，既摆脱了微孔沸石材料孔径尺寸小的束缚（对于尺寸较大分子的形状选择性吸附和催化具有潜在应用），又弥补了介孔材料难以实现尺寸选择性催化的不足（主要是由于大多数催化反应的反应物和产物分子的尺寸要比介孔的孔径小所致）．目前已报道了多种制备具有超微孔结构材料的方法，Zhang等报道了利用聚氧乙烯烷基胺为表面活性剂来合成具有有序的小孔道的介孔二氧化硅．Zhou等利用离子液体为模板通过反复制技术合成了具有高度有序的超微孔的层状二氧化硅材料．离子液体是一种有机盐，有较低的熔点、较宽范围的液相线温度以及较低的蒸气压，具有作为合成无机材料新反应介质的潜质，在合成微孔材料和介孔材料等方面起到了很重要的作用．

英文摘要：

An ordered hexagonal pore sub-mesostructured silica was synthesized via ionic liquid 1-hexadecane-3-methylimidazolium bromide（C16MIB） as structure-directing agents in acidic media. By combining the results of transmision electron microscopy, X-ray diffraction and surface area measurements, an elementary structure and characterization of the samples was obtained. This material performs two-dimensional hexagonal framework structure being analogous to MCM-41 and SBA-3 silicas in long range order, but the position of reflection peaks of X-ray diffraction shifts to a wide angle compared with those of MCM-41 and SBA-3. The submesostructured silica has high BET specific surface area of 1360 m^2/g, as well as small pore size of 1.8 nm.