羟基修饰的磁性纳米Fe_3O_4负载钯催化剂的合成  

Synthesis of Hydroxyl-Modified Magnetic Nanometer Fe_3O_4 Supported Palladium Catalyst

作　　者：冯翠兰[1] 徐海云[1] 徐茂田[1] 赵文献[1] 

机构地区：[1]商丘师范学院化学化工学院,河南商丘476000

出　　处：《广东化工》2011年第8期286-287,共2页Guangdong Chemical Industry

基　　金：国家自然科学基金资助项目(20972091);河南省科技厅科技攻关项目(082102210050);河南省教育厅自然科学研究计划项目(2008B150016;2008B150018;2011A150023);2010年商丘师范学院中青年骨干教师计划项目;商丘师范学院2010年度青年科研基金项目(2010QN16);商丘师院重大项目培育计划立项项目(2011ZDPY02)

摘　　要：采用水热法合成了具有超顺磁性的纳米Fe3O4,对其表面进行羟基修饰后负载纳米钯催化剂,并将其应用于苯硼酸与溴苯的Suzuki交叉偶联反应,考察所得负载催化剂的催化性能及循环利用效果。研究结果表明:在80℃、2 h反应条件下,溴苯的转化率可达92.7%。Superparamagnetic nanometer Fe3O4 was prepared by hydrothermal method, and it was supported on palladium catalyst after its surface was modified with hydroxyl group. The magnetic nanoparticle supported palladium catalyst was applied in the Suzuki cross-coupling reaction of phenyloboricacid and bromobenzene, and its catalytic activity and recycling effect was examined. The results indicated that the conversion of bromobenzene was 92.7 % under the reaction conditions such as the reaction time 2 h, and the reaction temperature 80 ℃.

关 键 词：磁性纳米Fe3O4 羟基修饰:负载钯催化剂 Suzuki交叉偶联反应 

分 类 号：O643.36[理学—物理化学]