稀土对K_(11)[Sm(AlW_(11)O_(39)H_2)_2]·21H_2O的气相热扩渗及其导电性研究  

Conductivity of K_(11)[Sm(AlW_(11)O_(39)H_2)_2]·21H_2O Treated by Chemistry-Heated Diffusion of Mixed Ce and La Permeation

作　　者：李玲[1] 韦永德[1] 杜华[2] 周百斌[2] 于凯[3] 

机构地区：[1]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001 [2]哈尔滨师范大学化学系,黑龙江哈尔滨150080 [3]哈尔滨师范大学呼兰学院化学系,黑龙江哈尔滨150500

出　　处：《稀有金属》2006年第5期699-702,共4页Chinese Journal of Rare Metals

基　　金：国家自然科学基金资助项目(29671009);黑龙江省教育厅资助项目(10511032)

摘　　要：参照文献合成了标题化合物。对所合成化合物进行了高温气相多组分混合稀土化学热扩渗,经ICP,XPS,IR,XRD和TG-DTA等测试分析证实,微量稀土元素La和Ce等已渗入到杂多配合物的体相。利用四电极法对扩渗后化合物的导电性能进行了研究,其导电率δ为9.2×10-3S.cm-1,比扩渗前(δ=1.29×10-9S.cm-1)提高了7.1×106倍。According to the literature, the title compound was prepared and treated by high temperature gaseous mix rare earth permeation. ICP, IR, TG- DTA, XPS, XRD were used to characterize the title compound and the treated sample. The results confirm that Ce and La can be permeated into the body of the title compound. Four-probe method was used to measure the conductivities. A novel result shows that conductivity of the permeated compound （δ = 9.2 × 10^-3 S.cm^-1） is 7.1 × 10^6 times larger than the title com- pound（δ = 1.29 ×10^-9 S.cm^-1）.

关 键 词：稀土 杂多配合物 导电性 扩渗 四电极法 

分 类 号：O614.33[理学—无机化学]