波谱学杂志 ›› 1990, Vol. 7 ›› Issue (3): 345-348.

• 研究论文 • 上一篇    下一篇

Na2O·B2O3·V2O5玻璃的51V核磁共振研究

徐曙, 邬学文   

  1. 华东师范大学分析测试中心
  • 收稿日期:1989-07-07 修回日期:1989-09-02 出版日期:1990-09-05 发布日期:2018-01-23
  • 基金资助:
    国家自然科学基金

THE 51V NMR STUDIES ON Na2O-B2O3-V2O3 GLASS SYSTEM

Xu Shu, Wu Xuewen   

  1. Analytical Center of East China Normal University, Shanghai
  • Received:1989-07-07 Revised:1989-09-02 Online:1990-09-05 Published:2018-01-23

摘要: 本文应用51V核磁共振研究了Na2O·B2O3·V2O5玻璃的结构,结果表明:
1) R<0.5+K时,随着R的增加,依次形成NaV3O8、NaVO3和NaVO3-B结构。2
) R=0.5+K时,全部的V2O5转化为NaVO3和NaVO3-B结构。
3) R>0.5+K时,由于硼酸盐中非桥氧数的增加,NaVO3-B结构逐步消失,并推测NaVO3-B结构中的B原子为四配位结构。

关键词: 玻璃, 硼酸盐, 钒酸盐, 核磁共振

Abstract: The structure of Na2O-B2O3-V2O5 glasses is studied by the 51V NMR technique. The results show that,
1) as R<0.5+K, the NaV3O8, NaVO3 and NaVO3-B units are formed successively with the increasing of R.
2) as R=0.5 + K, all the V2O5 units are transformed into NaVO3 and NaVO3-B units.
3) as R>0.5 + K, the number of NaVO3-B units decreases accordingly as the increasing of nonbridge-oxygen atoms in borate units, and it can be guessed that the boron atoms in NaVO3-B are 4-coordinated.

Key words: Glass, Borate, Vanadate, NMR