| AlON尖晶石微结构的固体NMR研究 |
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| 引用本文： | 任海兰,岳勇,叶朝辉,戴英,南策文.AlON尖晶石微结构的固体NMR研究[J].高等学校化学学报,1999,20(2):297-298. |
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| 作者姓名： | 任海兰 岳勇 叶朝辉 戴英 南策文 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | AlON尖晶石 微结构 固体NMR |
| 收稿时间： | 1998-03-16 |
The Use of Solid State NMR in Structural Studies of AlON Spinel |
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| REN Hai-Lan,YUE Yong,YE Chao-Hui,DAI Ying,NAN Ce-Wen.The Use of Solid State NMR in Structural Studies of AlON Spinel[J].Chemical Research In Chinese Universities,1999,20(2):297-298. |
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| Authors: | REN Hai-Lan YUE Yong YE Chao-Hui DAI Ying NAN Ce-Wen |
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| Institution: | 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 |
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| Abstract: | Al\} MAS 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 \{\{\}\+\{27\}Al\} MAS NMR spectra of the
samples of \%\%\|AlON spinel crystal with different composition were acquired. The results
confirmed that AlN\-4, AlO\-4 and AlO\-6 structures 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.\= |
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| Keywords: | AlON spinel Microstructure NMR |
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