三核钨簇合物-V_2O_5催化剂对苯乙烯氧化反应的催化

OXIDATION OF STYRENE IN THE PRESENCE OF TUNGSTEN CLUSTER V 2O 5 COMPOSITE CATALYST

本文研究了三核钨簇合物［Ｗ３Ｏ２（ＣＨ３ＣＯ２）６（Ｈ２Ｏ）３］Ｂｒ３·２Ｈ２Ｏ与一些物质组成的二元催化剂对苯乙烯氧化反应的催化作用，结果表明：钨簇合物－Ｖ２Ｏ５催化剂对苯乙烯氧化反应的催化效果特别显著，而且在反应前后其重量、结构及催化活性基本不变，可以多次回收重复使用。对影响钨簇合物－Ｖ２Ｏ５催化剂催化性能的几个因素进行了讨论，测定了催化剂及其吸附氧气的红外光谱，说明钨簇合物及Ｖ２Ｏ５可以与Ｏ２形成分子氧配合物及超氧（Ｏ－２）配合物。

The catalytic performance of some composite catalysts for the oxidation of styrene were studied The results show that tungsten cluster V 2O 5 composite catalyst has remarkable catalytic activity and it can be used repeatly without change in its weight, structure and activity The factors taht influence catalytic performance of tungsten cluster V 2O 5 composite catalyst were discussed The infrared spectra were measured for catalysts and ones absorbed oxygen The results indicate that tungsten cluster and V 2O 5 can form molecular oxygen (O 2) complexes and superoxide ion (O - 2) complexes with oxygen