| 水热法制备BaO-Nd_2O_3-TiO_2系纳米粉体 |
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| 引用本文： | 管航敏,冯燕,韩成良,胡坤宏. 水热法制备BaO-Nd_2O_3-TiO_2系纳米粉体[J]. 中国粉体技术, 2007, 13(5): 24-26 |
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| 作者姓名： | 管航敏 冯燕 韩成良 胡坤宏 |
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| 作者单位： | 1. 合肥学院,化学与材料工程系,安徽,合肥,230022
2. 安徽大学,化学与化工学院,安徽,合肥,230039 |
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| 摘 要： | 采用水热法制备了BaO-Nd2O3-TiO2(BNT)系纳米粉体。在KOH碱性溶液中,以TiCl4,BaCl2和Nd(NO3)3为反应物,先制备出BaO-Nd2O3-TiO2(BNT)凝胶前驱体,再经低温水热处理,得到BNT系纳米粉体。产物通过XRD、IR、TEM等手段进行测试分析,结果表明:该法获得的BNT系纳米粉体为立方相结构,稀土元素掺杂均匀,产物粒径小,分散度高。讨论了BNT系纳米粉体的形成机理,发现凝胶前驱体的存在有利于BNT系纳米粉体的成功制备。
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| 关 键 词： | 微波介质陶瓷 水热法 稀土 纳米粉体 |
| 文章编号： | 1008-5548（2007）05-0024-03 |
| 修稿时间： | 2006-10-30 |
Preparation BaO-Nd2O3-TiO2 Nano-crystal by Hydrothermal Method |
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| GUAN Hang-min,FENG Yan,HAN Cheng-liang,HU Kun-hong. Preparation BaO-Nd2O3-TiO2 Nano-crystal by Hydrothermal Method[J]. China Powder Science and Technology, 2007, 13(5): 24-26 |
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| Authors: | GUAN Hang-min FENG Yan HAN Cheng-liang HU Kun-hong |
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| Affiliation: | 1. Department of Chemistry and Material Engineering, Hefei University, Hefei 230022 ; 2. School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230039, China |
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| Abstract: | BaO-Nd2O3-TiO2(BNT) nano-crystal was prepared by a hydrothermal method.Firstly a BNT gel precursor was synthesized with TiCl4,BaCl2 and Nd(NO3)3 in alkalinity aqueous solution.Then under a low temperature hydrothermal condition,BNT nano-crystal can be formed directly.The nano-particles were characterized by XRD,TEM and IR.The results indicated that the products were in cubic phase with the uniform distribution of rare earth element,the small particle diameter and high dispersibility.The mechanism of synthesizing BaO-Nd2O3-TiO2 nano-crystal was discussed.The results showed the gel precursor is in favor of the successful formation of BaO-Nd2O3-TiO2 nano-crystal. |
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| Keywords: | microwave dielectric ceramics hydrothermal rare earth nano-crystal |
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