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| 铁酸钴纳米微粒的共沉淀法制备和磁性质(英) | |
| 引用本文： | 徐莉,张洪涛,洪健民,邹文琴,周志萍,陈学太.铁酸钴纳米微粒的共沉淀法制备和磁性质(英)[J].无机化学学报,2005,21(5):741-743. |
| 作者姓名： | 徐莉 张洪涛 洪健民 邹文琴 周志萍 陈学太 |
| 作者单位： | 1. 南京大学配位化学国家重点实验室,配位化学研究所,南京,210093 2. 南京大学分析测试中心,南京,210093 3. 南京大学物理系,固体微结构国家重点实验室,南京,210093 4. 南京大学化学化工学院,南京,210093 |
| 基金项目： | 江苏省自然科学基金资助项目(No.BK2004087)，南京大学大型贵重仪器设备开放测试基金资助项目。 |
| 摘 要： | The cobalt ferrite nanoparticles were prepared by coprecipitation in the presence of poly (N-vinylpyrrolidone) (PVP) and characterized by XRD, TEM, EDX and magnetometry. XRD results suggest the formation of pure cobalt ferrite. The mean particle sizes of CoFe2O4 samples annealed at 400 ℃ and 600 ℃ were ca. 6 and 25 nm, respectively as obtained by transmission electron microscopy (TEM). The magnetic measurements indicated that nano-particles obtained at 400 ℃ were superparamagnetic while that prepared at 600 ℃ were ferrimagnetic. |
| 关 键 词： | 铁酸钴 共沉淀 磁性质 |
| 收稿时间： | 2004/11/15 0:00:00 |
| 修稿时间： | 2005/1/28 0:00:00 |
Cobalt Ferrite Nanoparticles: Coprecipitation Synthesis and Magnetic Properties |
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| XU Li,ZHANG Hong-Tao,HONG Jian-Min,ZOU Wen-Qin,ZHOU Zhi-Ping and CHEN Xue-Tai.Cobalt Ferrite Nanoparticles: Coprecipitation Synthesis and Magnetic Properties[J].Chinese Journal of Inorganic Chemistry,2005,21(5):741-743. | |
| Authors: | XU Li ZHANG Hong-Tao HONG Jian-Min ZOU Wen-Qin ZHOU Zhi-Ping and CHEN Xue-Tai |
| Institution: | State Key Laboratory of Coordination Chemistry and Coordination Chemistry Institute, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry and Coordination Chemistry Institute, Nanjing University, Nanjing 210093,Analytic Center of Nanjing University, Nanjing 210093,Department of Physics, State Key Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210093,College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 and State Key Laboratory of Coordination Chemistry and Coordination Chemistry Institute, Nanjing University, Nanjing 210093 |
| Abstract: | The cobalt ferrite nanoparticles were prepared by coprecipitation in the presence of poly (Nvinylpyrrolidone) (PVP) and characterized by XRD, TEM, EDX and magnetometry. XRD results suggest the formation of pure cobalt ferrite. The mean particle sizes of CoFe2O4 samples annealed at 400 ℃ and 600 ℃ were ca.6 and 25 nm, respectively as obtained by transmission electron microscopy (TEM). The magnetic measurements indicated that nano-particles obtained at 400 ℃ were superparamagnetic while that prepared at 600 ℃ were ferrimagnetic. |
| Keywords: | cobalt ferrite coprecipitation magnetic properties |
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