钼钒磷杂多酸的合成及催化性能研究  

Study on the Synthesis of Heteropoly Acids Containing Different Amount of V and Moand Their Catalytic Performance for the Direct Hydroxylation of Benzene to Phenol

作　　者：张进 唐英[2] 罗茜[1] 简敏[1] 胡常伟[1] 

机构地区：[1]绿色化学与技术教育部重点实验室,四川大学化学学院 [2]渝西学院化学系,重庆402168

出　　处：《无机化学学报》2004年第8期935-940,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20072024);高等学校优秀青年教师教学科研奖励计划(2002年)资助项目。

摘　　要：Three heteropoly acids containing different amounts of V and Mo have been prepared by multi-step method. The methed was simple, economic in raw materials’ cost, and with relatively higher yield. ICP, TGA, Potentiometric Titrations, Infrared, XRD and 51V NMR characterizations revealed that the compounds synthesized in present work had Keggin structure. The catalytic performance of the heteropoly acids obtained for the direct hydroxylation of benzene to phenol was also investigated, 26% phenol yield with more than 90% selectivity was obtained.Three heteropoly acids containing different amounts of V and Mo have been prepared by multi-step method. The methed was simple, economic in raw materials' cost, and with relatively higher yield. ICP, TGA, Potentiometric Titrations, Infrared, XRD and V-51 NMR characterizations revealed that the compounds synthesized in present work had Keggin structure. The catalytic performance of the heteropoly acids obtained for the direct hydroxylation of benzene to phenol was also investigated, 26% phenol yield with more than 90% selectivity was obtained.

关 键 词：钼钒磷杂多酸 合成 催化性能 催化剂 

分 类 号：O614.511[理学—无机化学] O643.36[理学—化学]