高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (2): 297.

• 研究简报 • 上一篇    下一篇

AlON尖晶石微结构的固体NMR研究

任海兰, 岳勇, 叶朝辉, 戴英, 南策文   

  1. 1. 中国科学院武汉物理与数学研究所, 波谱与原子分子物理国家重点实验室, 武汉 430071;
    2. 武汉工业大学新材料研究所, 武汉 430070
  • 收稿日期:1998-03-16 出版日期:1999-02-24 发布日期:1999-02-24
  • 通讯作者: 岳勇
  • 作者简介:任海兰,女,28岁,博士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29873065)

The Use of Solid State NMR in Structural Studies of AlON Spinel

REN Hai-Lan, YUE Yong, YE Chao-Hui, DAI Ying, NAN Ce-Wen   

  1. 1. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physicsand Mathematics, Chinese Academy of Sciences, Wuhan, 430071;
    2. Advanced Materials Institute, Wuhan University of Technology, Wunhan, 430070
  • Received:1998-03-16 Online:1999-02-24 Published:1999-02-24

摘要: γ-Al2O3为低温型晶体,是尖晶石型结构,n(O)∶n(Al3+)为1∶2,在氧化气氛下升温至950~1000℃时,则向α-Al2O3转变.α-Al2O3中氧原子呈六方密堆积,Al3+离子仅占据氧八面体空隙.

关键词: AlON尖晶石, 微结构, 固体NMR

Abstract: 27AlMAS NMR was used on structural studies of AlON spinel. The results suggested that NMR can offer more accurate information about microstructure and coordination when X-ray diffraction display the same spectra. The 27AlMAS NMR spectra of the samples of γ-AlON spinel crystal with different composition were acquired. The results confirmed that AlN4, AlO4 and AlO6structures exist in AlON spinel. The number of the nitrogen atoms that substitute oxygen atoms and enter into anion positions increases with the content of nitrogen increasing. However, the substitution has no influence on the structure of the crystal, thus no influence on the X-ray diffraction spectra.

Key words: AlON spinel, Microstructure, NMR

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