Dawson结构过氧钛、锆-取代钨磷杂多配合物的合成及催化活性  

Synthesis and Catalytic Activity of Peroxotitanium or Peroxozirconium mono-Substituted Tungstophosphates with Dawson Structure

作　　者：单秋杰[1] 瞿伦玉[2] 

机构地区：[1]齐齐哈尔大学化学系,齐齐哈尔161006 [2]东北师范大学化学系

出　　处：《应用化学》2002年第11期1088-1090,共3页Chinese Journal of Applied Chemistry

基　　金：黑龙江省教育厅科学技术研究资助项目 (95 5 10 94)

摘　　要：Four complexes K8[P2W 17TiO 62]·5H2O, K8[P2W 17TiO 61]·9H2O, K8[P2W 17TiO 62]·7H2O and K8[P2W 17（ZrO2）O 61]·4H2O were synthesized by the cubic selective method and characte- rized by IR and UV spectroscopy, polarography, cyclic voltammetry and 183W NMR methods. The results indicate that they all have Dawson structure with high catalytic activity in the epoxidation of maleic acid by H2O2. Peroxotitanium mono-substituted tungstophosphate, K8[P2W 17（TiO2）O 61]·9H2O, has the highest catalytic activity to give sodium epoxy-maleate in yield of 86.21%.Four complexes K_8[P_2W_ 17TiO_ 62]·5H_2O, K_8[P_2W_ 17TiO_ 61]·9H_2O, K_8[P_2W_ 17TiO_ 62]·7H_2O and K_8[P_2W_ 17(ZrO_2)O_ 61]·4H_2O were synthesized by the cubic selective method and characte- rized by IR and UV spectroscopy, polarography, cyclic voltammetry and 183W NMR methods. The results indicate that they all have Dawson structure with high catalytic activity in the epoxidation of maleic acid by H_2O_2. Peroxotitanium mono-substituted tungstophosphate, K_8[P_2W_ 17(TiO_2)O_ 61]·9H_2O, has the highest catalytic activity to give sodium epoxy-maleate in yield of 86.21%.

关 键 词：DAWSON结构 过氧钛 过氧型钨磷杂多酸盐 合成 催化活性 环氧化作用 顺丁烯二酸 氧化 过氧化氢 催化剂 

分 类 号：O643.36[理学—物理化学]