固体超强酸Ce^(4+)-SO_4^(2-)/SnO_2微乳法制备与表征  

Preparation and Characterization of Solid Super Acid Catalyst Ce^(4+)-SO_4^(2-)/SnO_2 Prepared With Microemulsion Method

作　　者：郭海福[1] 陈志胜[1,2] 郝向英[1] 闫鹏[1] 

机构地区：[1]肇庆学院化学化工学院,肇庆广东526061 [2]内蒙古工业大学化工学院,呼和浩特内蒙古010051

出　　处：《分子催化》2010年第4期291-297,共7页Journal of Molecular Catalysis(China)

基　　金：广东省自然科学基金项目(7010338);广东省肇庆市科技计划项目(2008G004);广东肇庆市科技计划项目(2009G013)

摘　　要：利用OP-10/正丁醇/环己烷微乳体系制备出固体超强酸Ce4+-SO42-/SnO2.以乙酸正丁酯合成为探针反应,得出Ce4+-SO42-/SnO2的优化制备条件:R=65∶100(表面活性剂∶水)、陈化时间12 h、Ce(SO4)2.4H2O占8%、浸渍浓度3 mol/L、焙烧温度550℃、焙烧时间3 h.并采用XRD、FTIR、TG-DTA和SEM表征技术对该催化剂的结构进行研究.The solid superacid catalyst Ce4＋-SO42-/SnO2 was prepared by microemulsion method in OP-10 /n-butanol/cyclohexane system.The catalytic performance of the prepared catalyst was evaluated by esterification of acetic acid and n-butanol.The optimum conditions for the preparation of solid superacid Ce4＋-SO42-/SnO2 are mass ratio between surfactant and solution 65∶100,content of Ce（SO4）2 ·4H2O 8%,aging time 12 h,concentration of impregnating solution 3 mol/L,calcining temperature 550 ℃ and calcining time 3 h.And the physic-chemical properties of the materials were characterized by XRD,FTIR,TG-DTA,BET,SEM.

关 键 词：微乳 固体超强酸 制备 表征 

分 类 号：O643.3[理学—物理化学]