Electrical conductivity of REF3-LiF(RE=La and Nd) molten salts  

作　　者：Xiaoping Zhu Shuchen Sun Ting Sun Chuan Liu Ganfeng Tu Jiayue Zhang 

机构地区：[1] School of Metallurgy,Northeastern University,Shenyang 110819.China [2] School of Sciences,Northeastern University,Shenyang 110819,China [3] Shenyang Research Institute of Chemical Industry,Shenyang 110021,China

出　　处：《Journal of Rare Earths》2020年第6期676-682,共7页稀土学报（英文版）

基　　金：the National High Technology Research and Development Program(2011AA03A409);Fundamental Research Funds for the Central Universities(N110202002)。

摘　　要：The electrical conductivity of REF3-LiF(RE=La and Nd) molten salts(xREF3=5 mol%-40 mol%) was systematically measured over the temperature range from 1223 to 1423 K by using continuously varying cell constant(CVCC) method.Electrical conductivity values of LaF3-LiF and NdF3-LiF molten salts within the studied ranges are 4.11-9.39 and 3.62-9.51 S/cm,respectively.The composition and temperature dependences of electrical conductivity and the factor of RE2 O3 on electrical conductivity were investigated.The electrical conductivity nonlinearly decreases with the increasing mole percent of REF3 for the changing of structural ion in molten salts.A good linear relationship between the natural logarithm of electrical conductivity(lnκ) and the reciprocal of the absolute temperature(T-1) can be interpreted by the trend that electrical conductivity linearly increases with increasing temperature.Although it is an important factor of RE2 O3 on electrical conductivity,the influence of RE2 O3 on conductivity is small for the very limited solubility of RE2 O3 in REF3-LiF molten salts.The results of this work supplement the present electrical conductivity data of rare earth fluoride electrolyte.

关 键 词：Electrical conductivity Rare earth REF3-LiF Molten salts ELECTROLYTE 

分 类 号：O646.1[理学—物理化学]