(NH_4)_3H_2[H_2PMo_8O_(30)]·4H_2O的水热合成、表征及其对过氧化氢的电催化还原(英文)  

Hydrothermal synthesis,characterization of (NH_4)_3H_2[H_2PMo_8O_(30)]·4H_2O and its electrocatalysis toward the reduction of hydrogen peroxide

作　　者：张澜萃[1] 薛韩[1] 李娜[1] 由万胜[1] 孙振刚[1] 朱再明[1] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《化学研究与应用》2009年第10期1408-1413,共6页Chemical Research and Application

基　　金：辽宁省教育厅科学技术研究项目资助(2008364)

摘　　要：在水热条件下通过饱和Keggin结构杂多酸(H3PMo12O40.14H2O)降解合成了一种具有四缺位的1∶8型的高度对称的杂多钼酸盐,(NH4)3H2[H2PMo8O30].4H2O 1。利用X-射线单晶衍射、元素分析、IR、XRPD和电化学分析进行了表征。并探讨了在酸性溶液中对H2O2分解的电催化作用。结果表明,化合物1修饰的碳糊电极(1-MCPE)在酸性溶液中的循环伏安图出现了三对可逆的氧化还原峰。1-MCPE在酸性水溶液中对过氧化氢的电化学还原反应具有较高的催化活性。A 1 ： 8-type heteropolymolybdate with tetravacant Keggin structure, a high symmetrical structure, （ NH4 ） 3 H2 [ H2 PMo3 O30 ] .4H2O （ compound 1 ） ,has been isolated by degrading the saturated Keggin structure （ H3PMo12O40· 14H2O） under hydrothermal condition. It has been characterized by single crystal X-ray diffraction, elemental analysis, IR, XRPD and electrochemical analysis. And its electrocatalytic action on decomposition of H2O2 was discussed. Electrochemical studies show that 1 modified carbon paste electrode （1-MCPE） exhibits well-defined cychc vohammograms with three reversible redox couples in acidic aqueous solution. It has better electrocatalytic activities toward the reduction of hydrogen peroxide.

关 键 词：水热合成 1型磷钼酸盐 四缺位Keggin结构 电催化还原 

分 类 号：O611.4[理学—无机化学]