应用模式耦合理论求离子极限摩尔电导率  

Application of Mode Coupling Theory to Calculation of the Ionic Limiting Molar Conductivity

作　　者：韩景立[1] 陈健[1] 陆九芳[1] 何向明[2] 

机构地区：[1]清华大学化工系,北京100084 [2]清华大学核能技术设计研究院

出　　处：《应用化学》2003年第9期845-848,共4页Chinese Journal of Applied Chemistry

基　　金：清华大学基础研究基金 ( 2 0 0 115 0 0 7)资助项目

摘　　要：在模式耦合理论推导的低浓度时离子摩尔电导率与离子浓度的关系式中 ,引入离子迁移数 ,提出了求离子极限摩尔电导率的新方法。应用该方法计算了 7种锂盐在 2种单一有机溶剂和 2种混合有机溶剂中正、负离子的极限摩尔电导率。计算结果与文献中采用经验公式计算迁移数得出的结果和文献中根据电化学电池法测定迁移数得出的结果相符。The ion transfer number is introduced in the formula describing the relationship between ionic limiting molar conductivity and ionic concentration based on mode coupling theory(MCT). A series of calculated for the ionic limiting molar conductivity are present. The ionic limiting molar conductivities of seven lithium salts in two single organic solvents and two mixed solvents are calculated. The results are in good agreement with the literature′s results which are calculated either from transport number obtained by empirical formula or from transport number obtained by electrochemiscal experiments.

关 键 词：模式耦合理论 离子极限摩尔电导率 有机电解质溶液 锂盐 

分 类 号：O641[理学—物理化学]