| 铁酸钴纳米微粒的共沉淀法制备和磁性质(英) | |
| Cobalt Ferrite Nanoparticles: Coprecipitation Synthesis and Magnetic Properties | |
| 摘要: | |
| 关键词: 铁酸钴 共沉淀 磁性质 | |
| 基金项目: | |
| Abstract: 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. | |
| Keywords: cobalt ferrite coprecipitation magnetic properties | |
| 投稿时间：2004-11-15 修订日期：2005-01-28 | |
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| 全文下载次数: 1870 | |
| 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. | |
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