稀土元素钨硅杂多配合物的合成与稀土多元渗及导电性  

Syntheses,Rare Earth Co-permeation and Conductivity of Heteropoly Tungstosilicate Complexes of Rare Earth Elements

作　　者：邢志华[1] 周百斌[1] 徐学勤[1] 李中华[2] 韦永德[2] 

机构地区：[1]哈尔滨师范大学化学系,黑龙江哈尔滨150080 [2]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001

出　　处：《稀土》2005年第3期9-13,共5页Chinese Rare Earths

基　　金：国家自然科学基金资助项目资助(20371014);黑龙江省教育厅科研项目资助(10531070);哈尔滨市学科后备带头人基金资助(2002AFXXJ050)

摘　　要：报道了稀土元素钨硅三元杂多酸钾K13[Ln(SiW11O39)2]·xH2O(Ln=La,Ce,Pr,Nd,Sm,Eu,Gd,Dy,Yb,Y)的合成,通过IR光谱、TG-DTA分析、XRD和XPS等现代分析方法测试表明,新配合物仍保持Keggin结构。采用气相法,对合成配合物进行了稀土扩渗研究,通过ICP测试证明La,Sm,Dy已渗入到配合物的体相,并用四电极法和交流阻抗法测定了其导电性。K_(13)[Ln(SiW_(11)O_(39))_2] ·xH_2O (Ln=La,Ce,Pr, Nd ,Sm, Eu, Gd, Dy, Yb,Y) complexes have been prepared and characterized by IR,TG-DTA,XRD and XPS.The results give the evidence that the complexes still hold the Keggin structure .Rare earth permeation on the title complexes was carried out in gas phase.The results of ICP indicate that La,Sm and Dy have been permeated into the inner phase of complexes.The conductivity was determined by the four-electrode method and AC impeddence.

关 键 词：钨硅杂多配合物 稀土多元渗 导电性 

分 类 号：O614.33[理学—无机化学] O646[理学—化学]