Ti－ZSM－11的合成、表征及苯乙烯选择氧化反应的研究  

Studies on the Synthesis and Characterization of Ti-ZSM-11 and the Selective Oxidation of Styrene

作　　者：张福顺[1] 吴志芸[1] 张春雷[1] 阚秋斌[1] 

机构地区：[1]吉林大学化学系

出　　处：《高等学校化学学报》1995年第4期603-607,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：通过３种不同的水热晶化法合成了Ｔｉ－ＺＳＭ－１１型分子筛，并利用ＸＲＤ、ＳＥＭ、ＩＲ、ＴＧ－ＤＴＡ、ＸＰＳ、ＤＲＳ等手段对其进行了表征．结果表明，Ｔｉ进入了分子筛骨架，且Ｔｉ含量增加，晶胞参数增大，ＩＲ谱中～９７０ｃｍ－１的谱带逐渐增强．热分析表明，Ｔｉ－ＺＳＭ－１１有较好的热稳定性，苯乙烯选择氧化结果表明，沸石中Ｔｉ含量增加，反应活性提高，活性中心Ｔｉ是孤立的连接，而不是彼此邻近相连。Ti-ZSM-11 zeolite was synthesized by three different hydrothermal crystalline methods.The structure and properties were investigated by XRD,SEM,IR,TG-DTA, XPS, DRS. The results show that Ti4+ occupies T site of the framework of the zeolite, The unit cell parameters and the intensity of the ～970 cm-1 band in IR spectra increase with in creasing Ti content,as well as the activity of the selective oxidation of styrene.At the active centres,the Ti(Ⅳ)are isolated from each other and form long sequences, not having other Ti(Ⅳ)as neighbours.The oxidative abilities of TS-2 are similar to three different porphyrins in their catalytic properties.

关 键 词：分子筛 合成 表征 苯乙烯 氧化 钛 水热晶化 

分 类 号：TQ424.25[化学工程] O625.12[理学—有机化学]