物理化学学报 >> 1995, Vol. 11 >> Issue (06): 484-487.doi: 10.3866/PKU.WHXB19950602

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掺杂NASICON系统的23Na NMR研究

岳勇,邓风,胡红兵,叶朝辉   

  1. 中国科学院武汉物理所波谱与原子分子物理国家重点实验室|武汉 430071
  • 收稿日期:1995-02-14 修回日期:1995-04-08 发布日期:1995-06-15
  • 通讯作者: 岳勇

23Na NMR Study on the Doped NASICON System

Yue Yong,Deng Feng,Hu Hong-Bing,Ye Zhao-Hui   

  1. Wuhan Institute of Physics,The Chinese Academy of Sciences,Wuhan 430071
  • Received:1995-02-14 Revised:1995-04-08 Published:1995-06-15
  • Contact: Yue Yong

关键词: 23Na NMR, 离子导体, NASICON

Abstract:

The sodium positions in the doped NASICON solid solution Na3Zr2-xYxSi2-xP1+xO12 system were investigated by using 23Na NMR techniques. The results of NMR indicats that the surroundings of the sodium cations in compounds with different compositions are different because the network structures are disordered by replacement of Y3+ for Zr4+ ions in the crystal structure. While the composition x is small, the sodium cations locate at two sites, Na(1) and Na(2) sites, in the structure. With x increasing, the surrounding of the sodium cations change and the position of the sodium cations is of only one kind at x=1.2. These results are important for understanding the crystal rule and the effect of the doped cation in the surroundings of the sodium cations in Na3Zr2-xYxSi2-xP1+xO12 solid state solution system.

Key words: 23Na NMR, Ionic condoctors, NASICON