Na_8[CoCdW_(11)O_(39)(H_2O)]的合成、表征及扩渗Er的性能研究  

SYNTHESIS,CHARACTERISTICS AND PROPERTIES OF Na_8[CoCdW_(11)O_(39)(H_2O)] PERMEATED BY Er

作　　者：林秀梅[1] 周百斌[1] 苏占华[1] 韩雪[1] 

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2009年第2期86-89,共4页Natural Science Journal of Harbin Normal University

基　　金：国家自然科学基金资助项目(20371014;20671026)

摘　　要：首次合成了Na8[CoCdW11O39(H2O)].12H2O,并利用稀土元素铒通过固-气界面反应对合成配合物进行稀土铒的扩渗.通过IR、XRD等手段对扩渗前后配合物的结构进行了表征,结果证明标题配合物为Keggin结构,扩渗后Keggin结构被破坏.经ICP和XPS测试表明,微量的Er渗入到杂多配合物的体相,并与化合物组成元素间存在键合作用.室温下采用四电极法对扩渗前后试样进行了导电性能的测定,扩渗后试样的导电率提高了2.0×104倍,且热稳定范围变宽,有望成为有实用价值的导电材料.Na8[CoCdW11O39（H2O）]·12H2O has been synthesized and the gaseous permeation of the rare earth element Er permeated into it was performed for the first time. The samples before and after permeation are characterized, the results of infrared （IR） and X- ray diffraction （XRD） tests indicate that the Keggin structure of the heteropoly compound is destroyed, the results of ICP and XPS show that the trace Er can permeat into the body of it and chemical bonds exist between Er and other components of the compound. The conductivity of the original and permeated compound has been measured with the four - electrode method at room temperature, and the conductivity of permeated sample improves by 2.0 × 10^4 times. The thermal stabilities of the permeated compound improves too. These results indicate the applications are expected. permeated sample is a good electrolyte and further

关 键 词：杂多配合物 铒 稀土扩渗 导电性 

分 类 号：O641.4[理学—物理化学] TB332[理学—化学]