SO_4^(2-)/SnO_2-WO_3/KIT-6复合固体酸催化剂的制备及其催化性能研究  

Preparation and Catalytic Application of SO_4^(2-)/SnO_2-WO_3/KIT-6 Complex Solid Acid

作　　者：陈文龙[1] 梁习习 徐雪青[1] 雷程[1] 贾娜[1] 杨志旺[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃兰州730070

出　　处：《广州化工》2016年第7期1-4,共4页GuangZhou Chemical Industry

基　　金：国家自然科学基金项目(21163016;21563026);甘肃省自然科学基金项目(1208RJZA287);教育部创新团队项目(IRT15R56)

摘　　要：以KIT-6为模板剂,采用浸渍法合成了复合型多孔固体酸催化剂SO2-4/Sn O2-WO3/KIT-6。用XRD、BET、TEM等手段对催化剂进行了表征,表明催化剂具有良好的介孔结构。将所得催化剂应用于催化环酮类化合物的Baeyer-Villiger氧化反应以及醛酮与二醇的缩合反应中。结果表明,所得固体酸在两类反应中都具有较好的催化性能。第二组份WO3和模板剂KIT-6的引入,有效地提高了催化剂的酸性和比表面积,促进了催化剂活性的提高。Complex solid acid of SO2-4/ Sn O2-WO3/ KIT-6 was prepared through impregnation method using KIT-6 as template.The solid acid was used as catalyst for the Baeyer-Villiger oxidation of cyclic ketones and the condensation reaction between ketones / aldehyde and diols.It was found that the synthesized solid acid exhibited promising catalytic activity in the two kinds of reactions.The introducing of the WO3 and KIT-6 increased not only the acidity but also the specific area of the solid acid,therefore,the catalytic activity of the solid acid was enhanced.

关 键 词：固体酸 催化 Baeyer-Villiger氧化反应 缩酮反应 缩醛反应 

分 类 号：O611[理学—无机化学]