| Pt3Co核-Pt壳型纳米粒子的制备及磁性 |
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| 引用本文： | 戴兢陶,杜玉扣,狄国庆,华南平,杨平. Pt3Co核-Pt壳型纳米粒子的制备及磁性[J]. 无机化学学报, 2006, 22(10): 1908-1910 |
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| 作者姓名： | 戴兢陶 杜玉扣 狄国庆 华南平 杨平 |
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| 作者单位： | 1. 苏州大学化学化工学院,苏州,215123
2. 苏州大学物理科学与技术学院,苏州,215006 |
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| 基金项目： | 国家自然科学基金;江苏省教育厅自然科学基金 |
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| 摘 要： | Pt3Co alloy nanoparticles were prepared by the reduction of H2PtCl6 and Co(OOCCH3)2 using NaBH4 as a reducing agent. The Pt3Co core-Pt shell nanoparticles (Pt3Co@Pt) were synthesized using hydrogen absorption reduction and characterized by plasma-atomic emission spectrometry (ICP), transmission electron microscopy (TEM), X-ray diffraction (XRD) and SQUID magnetometer. The results show that average size of Pt3Co@Pt nanoparticles is 3.6 nm with a standard deviation of 0.9 nm. Heating Pt3Co nanoparticles in air at 700 ℃ for 1 h, Co in Pt3Co nanoparticles was oxidized to Co3O4 and CoO; while no oxidation tendency was detected for Pt3Co@Pt nanoparticles. The crystallize structure of Pt3Co@Pt changed from the face centered cube (fcc) to the face centered tetragonal (fct) after the heating treatment. The coercivity of the heated Pt3Co@Pt reached to 276 Oe at room temperature.
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| 关 键 词： | Pt3Co纳米粒子； Pt3Co核-Pt壳结构纳米粒子； 吸氢再还原法； 磁性 |
| 文章编号： | 1001-4861(2006)10-1908-03 |
| 收稿时间： | 2006-05-23 |
| 修稿时间： | 2006-07-09 |
Synthesis and Magnetic Property of Pt3Co Core-Pt Shell Nanoparticles |
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| DAI Jing-Tao,DU Yu-Kou,DI Guo-Qing,HUA Nan-Ping and YANG Ping. Synthesis and Magnetic Property of Pt3Co Core-Pt Shell Nanoparticles[J]. Chinese Journal of Inorganic Chemistry, 2006, 22(10): 1908-1910 |
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| Authors: | DAI Jing-Tao DU Yu-Kou DI Guo-Qing HUA Nan-Ping YANG Ping |
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| Affiliation: | Department of Chemistry and Chemical Engineering, Suzhou, Jiangsu 215123,Department of Chemistry and Chemical Engineering, Suzhou, Jiangsu 215123,Department of Physical Science and Technologyb, Suzhou University, Suzhou, Jiangsu 215006,Department of Chemistry and Chemical Engineering, Suzhou, Jiangsu 215123 and Department of Chemistry and Chemical Engineering, Suzhou, Jiangsu 215123 |
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| Abstract: | |
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| Keywords: | Pt3Co nanoparticle Pt3Co core-Pt shell nanoparticle method of hydrogen absorption reduction magnetic property |
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