物理化学学报 >> 2005, Vol. 21 >> Issue (07): 782-785.doi: 10.3866/PKU.WHXB20050716

研究论文 上一篇    下一篇

Li1.3Ti1.7Al0.3(PO4)3与Na+的离子交换

娄太平; 李大纲; 戴厚晨; 唐书环; 徐铁伟; 高鸣   

  1. 东北大学材料与冶金学院, 沈阳 110004
  • 收稿日期:2004-12-10 修回日期:2005-02-08 发布日期:2005-07-15
  • 通讯作者: 娄太平 E-mail:loutaiping@yahoo.com.cn

The Ion Exchange Behavior of Na/Li for the Lithium Ion Conductor Li1.3Ti1.7Al0.3(PO4)3;

LOU Tai-ping; LI Da-gang; DAI Hou-chen; TANG Shu-huan; XU Tie-wei; GAO Ming   

  1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004
  • Received:2004-12-10 Revised:2005-02-08 Published:2005-07-15
  • Contact: LOU Tai-ping E-mail:loutaiping@yahoo.com.cn

摘要: 锂离子传导材料Li1.3Ti1.7Al0.3(PO4)3是具有NASICON结构的功能材料, 与Na+进行离子交换具有选择性高的特性. 研究了在不同温度条件下NaCl和LiCl水溶液中Li1.3Ti1.7Al0.3(PO4)3上的Na/Li离子交换行为. 实验结果表明, 升高温度能显著提高Li1.3Ti1.7Al0.3(PO4)3的Na/Li交换反应速率, 提高LiCl中杂质Na的分离效果.

关键词: Li1.3Ti1.7Al0.3(PO4)3, 离子交换, 氯化锂

Abstract: The lithium ion conductor Li1.3Ti1.7Al0.3(PO4)3 is a NASICON structural functional material, which has very high selectivity of ion exchange for Na+. The effects of temperature on Na/Li ion exchange reaction for the Li1.3Ti1.7Al0.3(PO4)3 in sodium chloride and lithium chloride solutions were investigated. The experimental results show that the Na/Li ion exchange reaction rate increases obviously for Li1.3Ti1.7Al0.3(PO4)3 with increasing temperature in the same infiltration time, and the Li1.3Ti1.7Al0.3(PO4)3 is very effective to separate sodium impurity from lithium chloride solution.

Key words: Li1.3Ti1.7Al0.3(PO4)3, Ion exchange, Lithium chloride