K_7BeBW_(11)O_(39)配合物的气相渗镨及其导电性能研究  

Conductivity of K_7BeBW_(11)O_(39) Treated by Pr Gas Permeation

作　　者：李中华[1] 韦永德[1] 郭元茹[1] 周百斌[1] 

机构地区：[1]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001

出　　处：《稀土》2004年第3期65-67,共3页Chinese Rare Earths

基　　金：黑龙江省重点攻关资助项目(GB02A301)

摘　　要：首次报道了通过固-气界面反应对K7BeBW11O39·25H2O配合物进行稀土Pr的扩渗。对配合物的TG-DTA分析确定了扩渗温度,扩渗后的试样经ICP测试表明:微量Pr可渗入到杂多配合物K7BeBW11O39·25H2O体相,采用直流四电极法和交流阻抗法对扩渗前后试样进行了导电性能的测定,扩渗后试样的室温电导率达到了1.49×10-1S·cm-1,交流阻抗谱显示材料为电子导体。Praseodymium gas permeation is used to treat K_7BeBW_(11)O_(39) for the first time. ICP, XRD, TG-DTA and AC impedance have been used to characterize K_7BeBW_(11)O_(39)·25H_2O and the treated sample. Based on the experimental results, it is reported that Pr can be permeated into the body of this sample, and the analysis of AC impedence spectra and DC four-probe expose the conductivity of K_7BeBW_(11)O_(39)·25H_2O improves tens thousands times at room temperature.

关 键 词：杂多配合物 稀土多元渗 导电性 

分 类 号：O614.33[理学—无机化学]