| 醇水均匀沉淀法制备纳米CeO2粉体工艺及机理研究 |
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| 引用本文： | 李霞章,陈志刚,陈建清,陈杨. 醇水均匀沉淀法制备纳米CeO2粉体工艺及机理研究[J]. 机械工程材料, 2006, 30(3): 68-70 |
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| 作者姓名： | 李霞章 陈志刚 陈建清 陈杨 |
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| 作者单位： | 江苏大学材料科学与工程学院,江苏,镇江,212013;江苏工业学院材料工程系,江苏,常州,213016;河海大学材料科学与工程学院,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金;江苏省高新技术项目 |
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| 摘 要： | 在醇-水体系中以六亚甲基四胺（HMT）为缓释沉淀荆制备了纳米CeO2粉体，并用TEM和BET对其进行了表征，考察了制备过程中工艺参数对CeO2粉体颗粒大小及团聚的影响，并对影响机理进行了探讨。结果表明：在较佳工艺条件下制备的纳米CeO2平均尺寸约为8nm，与传统的水溶液均匀沉淀法相比较，该方法得到的粉体粒径更小，且分散性好。
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| 关 键 词： | 醇水溶液 纳米CeO2 透光率 沉淀法 |
| 文章编号： | 1000-3738（2006）03-0068-03 |
| 收稿时间： | 2005-02-20 |
| 修稿时间： | 2005-02-202005-06-10 |
Process and Mechanism for Preparing Nano-sized CeO2 Powders by Homogeneous Precipitation Method in Alcohol-water Solvents |
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| LI Xia-zhang,CHEN Zhi-gang,CHEN Jian-qing,CHEN Yang. Process and Mechanism for Preparing Nano-sized CeO2 Powders by Homogeneous Precipitation Method in Alcohol-water Solvents[J]. Materials For Mechanical Engineering, 2006, 30(3): 68-70 |
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| Authors: | LI Xia-zhang CHEN Zhi-gang CHEN Jian-qing CHEN Yang |
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| Affiliation: | 1. Jiangsu University, Zhenjiang 212013, China; 2. Jiangsu Polytechnic University, Changzhou 213016, China; 3. Hehai University, Nanjing 210098, China |
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| Abstract: | Nano-sized CeO_2 powders were synthesized by homogeneous precipitation method in alcohol-water solution with hexamethylene tetramine(HMT)as precipitator.The nano-particles were characterized by TEM and BET.The process parameters which influenced the size and agglomeration of nanometer CeO_2 powders were studied and the influence mechanism was discussed.The average size of the particles prepared by the above method was about 8 nm.The particles had smaller size and better dispersion than those obtained from the ordinary powders synthesized by homogeneous precipitation in water solution. |
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| Keywords: | alcohol-water solution nanometer CeO2 light transmission rate precipitation method |
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