Synthesis and magnetic properties of CoFe2O4 nanoparticles confined within mesoporous silica
文献类型：期刊论文
| 作者 | Xue QJ(薛群基) ; Chen JT(陈江涛); Yan XB(阎兴斌)
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| 刊名 | Microporous and Mesoporous Materials
 |
| 出版日期 | 2010 |
| 卷号 | 135页码:137-142 |
| 关键词 | CoFe2O4 nanoparticles Mesoporous silica Heat-treatment Magnetic property |
| ISSN号 | 1387-1811 |
| 通讯作者 | 阎兴斌 |
| 中文摘要 | We report here the synthesis and magnetic properties of cobalt ferrite (CoFe2O4) nanoparticles inside thenanoscale channels of highly ordered mesoporous silica SBA-15. Formation of CoFe2O4 nanoparticlesinside the mesoporous channels was realized by impregnation of cobalt salt and iron salt precursors intothe channels of the SBA-15, followed by calcination at different temperatures (400–1000 C) in air. Theproducts were characterized by X-ray diffraction (XRD), field emission scanning and transmission elec-tron microscopies (FESEM and TEM), and nitrogen adsorption–desorption isotherm measurements. Asper results, a typical characteristic of the obtained materials is that the mesoporous channels of SBA-15 are partially filled by CoFe2O4 nanocrystallites. In consequence, these materials exhibit open, ordered2D hexagonal frameworks, which are very similar to that of the pristine SBA-15 except for the reduceddimension and specific surface area. Magnetic properties of the obtained materials show strong depen-dence on the calcination temperature. The maximum-value combination of the saturation magnetization(Ms), the remnant magnetization (Mr) and the coercivity (Hc) is obtained from the sample prepared at1000 C. Moreover, compared with the pure CoFe2O4 powder prepared at the same temperature, theCoFe2O4 incorporated SBA-15 composite possess higher magnetic parameters (Ms, Mr and Hc). |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Top Hundred Talents Program of Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2012-09-28 |
| 源URL | [http://210.77.64.217/handle/362003/1045]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Yan XB(阎兴斌) |
| 推荐引用方式 GB/T 7714 | Xue QJ,Chen JT,Yan XB. Synthesis and magnetic properties of CoFe2O4 nanoparticles confined within mesoporous silica[J]. Microporous and Mesoporous Materials,2010,135:137-142. |
| APA | 薛群基,陈江涛,&阎兴斌.(2010).Synthesis and magnetic properties of CoFe2O4 nanoparticles confined within mesoporous silica.Microporous and Mesoporous Materials,135,137-142. |
| MLA | 薛群基,et al."Synthesis and magnetic properties of CoFe2O4 nanoparticles confined within mesoporous silica".Microporous and Mesoporous Materials 135(2010):137-142. |
入库方式： OAI收割
来源：兰州化学物理研究所
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