高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (8): 841.

• 论文 • 上一篇    下一篇

Na3.3Zr1.65-xTixSi1.9P1.1O11.5系统钠快离子导体的合成及性能研究

王文继, 张志斌, 赵景总   

  1. 福州大学化学系
  • 收稿日期:1987-01-07 出版日期:1988-08-24 发布日期:1988-08-24
  • 通讯作者: 王文继

The Preparation and Properties of Na3.3Zr1.65-x·TixSi1.9P1.1O11.5 System

Wang Wenji, Zhang Zhibin, Zhao Jingzong   

  1. Department of Chemistry, Fuzhou University, Fuzhou
  • Received:1987-01-07 Online:1988-08-24 Published:1988-08-24

摘要: 具有三维离子通道的骨架结构的钠快离子导体NASICON(Na1+xZr2SixP3-xO12,0≤x≤3)固溶体系的研究[1,2].

关键词: NASICON型化合物, 钠快离子导体

Abstract: Sodium fast ion conductors Na3.3Zr1.65-x·TixSi1.9P1.1O11.5 were prepared from mixtures of Na3PO4,ZrP2O7-ZrO2-TiO2-SiO2 in platinum vessel at temperatures of 1173.2~1473.2Kfor several hours to 20 hand 40 h. Most of reactions were carried out at the temperature range 1373.2-1423.2 K. The phases, of NASICONplus ZrO2 were found, in the composition range x = 0~0.4. Apure NASlCONphase was found with x = 0.5~0.9. Agalss state appeared in x>0.9. Theoretical densities were evaluated according to the cell parameters determined. Electrical conductivities were measured from room temperature to 673.2K. In the same phase range, the conductivity always decreases with increasing x. The best conductor is Na3.3Zr1.05Ti0.6Si1.9P1.1O11.5 with conductivity . 47.2(S·m-1) ,at 673.2 K. The activation energy data show that most compositions of Na3.3Zr1.65-x·TixSi1.9P1.1O11.5 system are good conductors.

Key words: NASICON type compounds, Sodium fast ion conductors

TrendMD: