作　　者： ; ; ; ; ; ; ;

机构地区： 杭州师范大学材料与化学化工学院有机硅化学及材料技术教育部重点实验室

出　　处： 《有机硅材料》 2008年第4期194-197,共4页

摘　　要： 通过活性炭负载铂制备了一种硅氢加成反应用多相催化剂(Pt/C),考察了活性炭处理、还原pH值、催化剂铂负载量、反应时间对Pt/C催化苯乙烯与三乙氧基硅烷加成反应催化性能的影响。结果表明:用15%硝酸处理活性炭载体,pH值为8.5环境下还原的负载量为5%的Pt/C催化剂具有最好的催化效果,苯乙烯转换率为100%,β-加成产物选择性为94.9%。 A heterogeneous catalyst（Pt/C） for hydrosilylation reaction was prepared with activated carbon supported platinum catalysts.The effects of the activated carbon processing,reduction of pH,platinum catalyst loading,and the reaction time on the Pt/C catalytic hydrosilylation of styrene and triethoxysilane were investigated.The results showed that 15% nitric acid-treated activated carbon carrier,pH value of 8.5 reduction under the load capacity of 5% Pt/C catalyst has the best catalytic effect.Under such condition,the styrene conversion rate was 100%,and the choice of β-addition products was 94.9%.

关 键 词： 硅氢加成 催化剂

领　　域： [化学工程]