| 水热沉淀法合成SnO_2纳米晶 |
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| 引用本文： | 董相廷,刘桂霞,张伟,王大宇,李艳红,刘景和,李建利,洪广言.水热沉淀法合成SnO_2纳米晶[J].稀有金属材料与工程,2000(3). |
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| 作者姓名： | 董相廷 刘桂霞 张伟 王大宇 李艳红 刘景和 李建利 洪广言 |
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| 作者单位： | 长春光学精密机械学院!长春130022(董相廷，刘桂霞，张伟，王大宇，李艳红，刘景和，李建利)，中国科学院长春应用化学研究所!长(洪广言) |
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| 摘 要： | 用水热沉淀法合成了不同粒径的 Sn O2 纳米晶 ,属于四方晶系 ,空间群为 P4/ mnm。计算表明 :随焙烧温度的升高 ,Sn O2 晶粒度增大 ;而平均晶格畸变率则随晶粒度的增大而减小 ,表明粒子越小晶格畸变越大 ,晶粒发育越不完整。TEM分析结果表明 :所合成的 Sn O2 纳米粒子基本呈球形 ;随焙烧温度的升高 ,Sn O2 粒子的粒径增大。热失重分析表明 :水热沉淀法所合成的 Sn O2 纳米粉末中杂质含量很少 ,纯度高。
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| 关 键 词： | SnO_2 Sn 纳米晶 水热沉淀法 |
Nanocrystalline SnO_2 Synthesised by Means of Hydrothermal Precipitation |
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| Dong Xiangting ,Liu Guixia ,Zhang Wei ,Wang Dayu Lu Yanhong ,Liu Jinghe ,Lu Jianli ,Hong Guangyan.Nanocrystalline SnO_2 Synthesised by Means of Hydrothermal Precipitation[J].Rare Metal Materials and Engineering,2000(3). |
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| Authors: | Dong Xiangting Liu Guixia Zhang Wei Wang Dayu Lu Yanhong Liu Jinghe Lu Jianli Hong Guangyan |
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| Affiliation: | Dong Xiangting 1,Liu Guixia 1,Zhang Wei 1,Wang Dayu 1 Lu Yanhong 1,Liu Jinghe 1,Lu Jianli 1,Hong Guangyan 2 |
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| Abstract: | Nanocrystalline SnO 2 with different particle sizes has been prepared by means of hydrothermal precipitation. The resulting SnO 2 nanometer size powders, which are basically spherical in shape according to TEM, are tetragonal in structure with space group P4/mnm. Calculation shows that the crystallite size of SnO 2 increases with increase of the calcination temperature, but that the average crystal lattice distortion rate decreases with increase of crystallite size. The smaller the particle, the bigger the crystal lattice distortion and the slower the crystal growth rate. Weight loss analysis indicates the prepared SnO_2 is very slightly impure. |
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| Keywords: | SnO_2 Sn nanocrystalline hydrothermal precipitation method |
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