| 喷射共沉淀法制备纳米ZnFe2O4及其结构表征 |
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| 引用本文： | 焦正,李民强,边历峰,刘锦淮,钱逸泰.喷射共沉淀法制备纳米ZnFe2O4及其结构表征[J].无机化学学报,2001,17(5):631-635. |
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| 作者姓名： | 焦正 李民强 边历峰 刘锦淮 钱逸泰 |
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| 作者单位： | [1]中国科学技术大学化学系，合肥230061 [2]中国科学院合肥智能机械研究所，合肥230031 |
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| 基金项目： | 国家自然科学基金资助项目(No.69774028). |
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| 摘 要： | 对化学共沉淀法加以改进，称为喷射共沉淀法，采用喷射共沉淀法制备了ZnFe2O4纳米粉末材料。采用XRD，SEM和TEM进行结构分析，结果表明，喷射共沉淀法制备的ZnFe2O4纳米粉末颗粒细小均匀，形状完整，由于纳米尺寸效应的存在，纳米ZnFe2O4粉末材料具有铁磁性，从流体力学角度分析了喷射共沉淀法中物质的输运和反应过程，并解释了试验结果，认为喷射共沉淀法是一种较好的制备氧化物纳米粉末材料的方法。
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| 关 键 词： | 化学共沉淀 纳米材料 ZnFe2O4 喷射共沉淀 结构表征 软磁材料 铁酸锌 磁性 |
| 收稿时间： | 3/4/2001 12:00:00 AM |
| 修稿时间： | 2001年3月4日 |
The Preparation of Nano ZnFe2O4 by Spraying Coprecipitation and its Structure Analysis |
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| JIAO Zheng,LI Ming-Qiang,BIAN Li-Feng,LIU Jin-Huai and QIAN Yi-Tai.The Preparation of Nano ZnFe2O4 by Spraying Coprecipitation and its Structure Analysis[J].Chinese Journal of Inorganic Chemistry,2001,17(5):631-635. |
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| Authors: | JIAO Zheng LI Ming-Qiang BIAN Li-Feng LIU Jin-Huai and QIAN Yi-Tai |
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| Institution: | Department of Chemistry, University of Science and Technology of China, Hefei 230061,Hefei Institute of Intelligent Machines, Chinese Academy of Science, Hefei 230031,Hefei Institute of Intelligent Machines, Chinese Academy of Science, Hefei 230031,Hefei Institute of Intelligent Machines, Chinese Academy of Science, Hefei 230031 and Department of Chemistry, University of Science and Technology of China, Hefei 230061 |
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| Abstract: | In this paper ZnFe2O4 nano powders were prepared by improved coprecipitation method,which was cal led spraying coprecipitatio n.The XRD,SEM and TEM analysis shows the powder s ize is below 20nm.It was found that the nano powder shows ferrimagnetic chara cteristics,which is due to nano size effect.The transportatio n and reaction o f materials in spraying coprecipitation process was discussed by hydrodynamics m echani sm.The results demonstrated that sp raying coprecipitation can be a new method to prepare nano oxide p owders. |
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| Keywords: | coprecipitation nano-powder ZnFe2O4 |
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