杂多化合物催化性能的研究——单过渡金属配位的磷钨杂多化合物的合成、性质及其对H_2O_2分解反应的催化作用  

STUDY ON THE CATALYTIC PROPERTY OF HETEROPQLY COMPOUND:SYNTHESIS,CHARACTERIZATION AND CATALYTIC ACTION ON H_2O_2 DECOMPOSITION OF HETEROPOLY TUNGSTO-PHOSPHORIC COMPOUND SUBSTITUTED BY TRANSITION METAL ION

作　　者：马建伟[1] 叶兴凯[1] 吴越[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《Chinese Journal of Catalysis》1991年第6期451-458,共8页催化学报（英文）

基　　金：国家自然科学基金

摘　　要：合成了具有Keggin结构的杂多化合物K_7PW_(11)O_(39)·xH_2O(简写为PW_(11)),K_5PW_(11)ZO_(39)·xH_2O(Z=Mn^(Ⅱ),Co^(Ⅱ),简写为PW_(11)Mn,PW_(11)Co)和Dawson结构的杂多化合物H_6P_2W_(18)O_(62)·xH_2O及其钾盐K_6P_2W_(18)O_(62)·xH_2O(简写为P_2W_(18)和K_(10)P_2W_(17)O_(61)·xH_20(简写为P_2W_(17)),K_8P_2W_(17)ZO_(61)·xH_2O(Z=Mn^(Ⅱ),Co_(Ⅱ),简写为P_2W_(17)Mn,P_2W_(17)Co)。用热差热重、红外光谱、X射线衍射、循环伏安等技术对这类杂多化合物的性质进行了系统的研究,并对其结构和催化活性的关系进行了探讨。The kinetics of H2O2 decomposition catalyzed by Na2HPW12O40 under the phase transfer condition has been studied. The catalyst and the phase transfer catalyst chlorocetyl pyridine both react with H2O2 to form an intermediate compound, peroxo-tungsten complex. This intermediate compound is dissolved readily in chloroform, but unstable in chloroform and decomposes to yield oxygen. The characteristic of the reaction in two phases has been analyzed deeply. Based on the experimental results, the possible mechanism is proposed.

关 键 词：钨磷杂多酸钠 H2O2 分解 相转移 

分 类 号：TQ426.91[化学工程]