| Structural and magnetic properties of Fe3O4 nanoparticles prepared by arc-discharge in water |
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| 作者姓名： | FAN XiaoLing YAO KeFu |
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| 作者单位： | Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing100084, China |
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| 基金项目： | We greatly appreciate the supports from the National Center of Nanoscience and Technology of China, the Analysis Center of Tsinghua University and the Electron Microscope Laboratory of Tsinghua University. |
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| 摘 要： | By using a simple and low-cost arc-discharge method in deionized water, high purity Fe3O4 nanoparti- cles have been synthesized on large scale. The structure of these nanoparticles has been studied by means of transmission electron microscope and X-ray diffraction. The synthesized Fe3O4 nanoparticles show well-defined spherical shape, with diameters ranging from 10 to 30 nm and the average diameter about 20 nm. By investigating the effects of the different processing conditions, optimum parameters were obtained. Moreover, the size of the as-grown nanoparticles can also be controlled through ad- justing the processing parameters. These Fe3O4 nanoparticles were magnetic materials, showing saturation magnetization of 64.97 emu/g at room temperature.
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| 关 键 词： | 电弧放电 去离子水 Fe3O4 毫微粒 |
| 收稿时间： | 6 April 2007 |
| 修稿时间： | 2007-04-06 |
Structural and magnetic properties of Fe3O4 nanoparticles prepared by arc-discharge in water |
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| FAN XiaoLing YAO KeFu.Structural and magnetic properties of Fe3O4 nanoparticles prepared by arc-discharge in water[J].Chinese Science Bulletin,2007,52(20):2866-2870. |
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| Authors: | XiaoLing Fan KeFu Yao |
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| Institution: | (1) Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China |
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| Abstract: | By using a simple and low-cost arc-discharge method in deionized water, high purity Fe3O4 nanoparti- cles have been synthesized on large scale. The structure of these nanoparticles has been studied by means of transmission electron microscope and X-ray diffraction. The synthesized Fe3O4 nanoparticles show well-defined spherical shape, with diameters ranging from 10 to 30 nm and the average diameter about 20 nm. By investigating the effects of the different processing conditions, optimum parameters were obtained. Moreover, the size of the as-grown nanoparticles can also be controlled through ad- justing the processing parameters. These Fe3O4 nanoparticles were magnetic materials, showing saturation magnetization of 64.97 emu/g at room temperature. |
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| Keywords: | arc discharge deionized water Fe3O4 nanoparticles synthesis |
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