中华医学超声杂志

应用化学 ›› 1988, Vol. 0 ›› Issue (6): 72-74.

• 研究简报 • 上一篇    下一篇

一种新型快离子导体——锂、钠蒙脱石

范玉琴, 王守三, 吴浩青   

  1. 复旦大学化学系, 上海
  • 收稿日期:1987-03-21 修回日期:1988-03-26 出版日期:1988-12-10 发布日期:1988-12-10

Li, Na-MONTMORILLONITES, A NEW TYPE OF FAST IONIC CONDUCTOR

Fan Yuqin, Wang Shousan, Wu Haoqing   

  1. Department of Chemistry, Fudan University, Shangai
  • Received:1987-03-21 Revised:1988-03-26 Published:1988-12-10 Online:1988-12-10

PDF

401

被引次数

3

摘要： Shelfield和Howe[1]测定了氢蒙脱石的离子电导率,并认为它有可能作为一种固体电解质应用于电化学装置,但有关其活化能、电子电导以及快离子导体的结构特征未见报道。

关键词: 固体电解质, 超离子导体, 蒙脱石

Abstract: Natural mineral montmorillonite was found to be a new kind of fast ionic conductor. Using impedance measurement the conductjvities of Li and Na-montmorillonite with water content of 15% at 25℃ were determined as 1.04×10-3 and 2.76×10-3S·cm-1, activation energy 0.13eV and 0.11eV respectively. By DC polarization technique the electronic conductivity of Li-montmorillonite was measured to be 4×10-10s·cm-1. The ionic conductivities of Li and Na-montmorillonite vary with water content and were 6×10-3 and 8×10-3s·cm-1 respectively at 25℃ with 20% water content.

Key words: Solid electrolyte, Superionic conductor, Montmorillonite

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