分子筛负载钒配合物催化剂对烃类氧化的择形选择性研究  

Shape Selectivity of Zeolite-Encapsulated Vanadium Picolinic Complexes Catalyst for Oxidation of Alkanes

作　　者：周颖霏[1] 柏子龙[1] 方明芳[1] 陈绍洲[1] 

机构地区：[1]华东理工大学石油加工研究所,上海200237

出　　处：《分子催化》2002年第6期408-410,共3页Journal of Molecular Catalysis(China)

基　　金：国家自然科学基金资助项目(2976019).

摘　　要：研究了四价钒配合物VO(pic)2·H2O及其分子筛负载型催化剂VO(pic)2-NaY对芳香烃和正构烷烃的催化氧化性能.实验结果证明,VO(pic)2-NaY催化剂具有与VO(pic)2·H2O配合物催化剂相似的催化氧化活性,而且使对位产物(芳香烃为底物)和伯醇(底物为正构烷烃)的选择性得到提高,显示出均相配合物催化剂所不具有的择形选择性.Zeoliteencapsulated vanadium(Ⅳ) picolinic complexes catalyst and corresponding homogeneous catalyst VO(pic)2·H2O were prepared. The catalysts were used in the oxidation of toluene, nhexane and nheptane with CO(NH\-2)2·H2O\-2 as oxidant under 308 K. The results suggested that the 'shipinabottle' catalyst retains the same catalytic activity as homogeneous catalyst VO(pic)2·H2O and exhibits good shape selectivity as compared to the unencapsulated complexes.

关 键 词：分子筛负载钒配合物催化剂 烃 ship-in-a-bottle 催化氧化 择形选择性 

分 类 号：O622.1[理学—有机化学] O643.[理学—化学]