波谱学杂志 ›› 1993, Vol. 10 ›› Issue (3): 329-333.

• 研究论文 • 上一篇    

Li1+2xTi2-xMgxP3O12固溶体系统结构31P NMR研究

岳勇1, 邓风1, 胡红兵1, 叶朝辉1, 林祖纕2, 田顺宝2   

  1. 1. 中科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;
    2. 中科院上海硅酸盐研究所
  • 收稿日期:1992-10-05 修回日期:1993-01-15 出版日期:1993-09-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金青年基金

31P NMR STUDIES ON THE STRUCTURE OF Li1+2xTi2-xMgxP3O12 SYSTEMS

Yue Yong1, Deng Feng1, Hu Hongbin1, Ye Chaohui1, Lin Zuxiang2, Tian Shunbao2   

  1. 1. State Key Lab. Magn. Reson. and Atom, and Mol. Phys., Wuhan Inst. Phys., The Chinese Academy of Sciences, Wuhan 430071;
    2. Shanghai Institute of Ceramics, The Chinese Academy of Sciences
  • Received:1992-10-05 Revised:1993-01-15 Online:1993-09-05 Published:2018-01-20

摘要: 本文应用固体高分辨31P NMR技术,以P原子作为结构探针,对以LiTi2P3O12为基质的Mg掺杂固溶体系统快离子导体的结构进行了研究。并利用P原子第二配位层阳离子场强与其化学位移的关系,确定了不同化学位移31P NMR谱线与固溶体结构中P原子局部结构单元Q°之间的关系,解释了Mg的掺入所引起的晶体结构的变化。

关键词: 离子导体, NMR, 磷酸盐

Abstract: The structure of solid solutions Li1+2xTi2-xMgxP3O12, in which magnesium were doped, were studied by solid-state high-resolution 31P MAS NMR with P atom as a probe of the structure. The relationship between 31P NMR lines with different chemical shifts and the local structure units Q°in solid solution systems were determined by using a linear correlation between 31P isotropic chemical shift and field strength F of the cation of the second coordination sphere. These results give interpretation for the change of local structure due to the substitution of titanium by magnesium.

Key words: Solid solution, NMR, Phosphates