| 介孔纳米磁性材料的性能控制(英文) |
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| 引用本文： | 葛洪良,李良,陈敏,金一彪,金红晓,吴琼,王新庆.介孔纳米磁性材料的性能控制(英文)[J].稀有金属材料与工程,2010(Z2). |
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| 作者姓名： | 葛洪良 李良 陈敏 金一彪 金红晓 吴琼 王新庆 |
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| 作者单位： | 中国计量学院浙江省磁性材料重点实验室;横店集团东磁股份有限公司; |
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| 基金项目： | National Natural Science Foundation of China (20571067, 20801050); Education Project of Zhejiang Province (20060521) |
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| 摘 要： | 以SBA-15介孔分子筛为载体,利用溶胶凝胶-浸渍法合成一种新型纳米结构的磁性材料,同时利用XRD及VSM分析了合成介孔材料的微观结构以及磁性能。结果发现,合成材料的Fe2O3纳米颗粒存在于SBA-15的骨架中,而CoFe2O4纳米颗粒存在于介孔孔道中。介孔纳米磁性材料的磁性能可以通过掺杂CoFe2O4及Fe2O3的含量进行控制。掺杂CoFe2O4样品的饱和磁化强度可达未掺杂样品的12倍。此外,利用Kelly-Hankel(δM)曲线研究了合成介孔纳米磁性材料中CoFe2O4与Fe2O3纳米磁性材料间的交换耦合作用,这可以明显提升合成介孔材料的磁性能。
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| 关 键 词： | SBA-15 溶胶凝胶 磁性能 |
Tailoring Magnetic Properties of Mesoporous Nanocomposite Materials |
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| Ge Hongliang,Li Liang,Chen Min,Jin Yibiao,Jin Hongxiao,Wu Qiong,Wang Xinqing.Tailoring Magnetic Properties of Mesoporous Nanocomposite Materials[J].Rare Metal Materials and Engineering,2010(Z2). |
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| Authors: | Ge Hongliang Li Liang Chen Min Jin Yibiao Jin Hongxiao Wu Qiong Wang Xinqing |
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| Affiliation: | Ge Hongliang1,Li Liang1,Chen Min1,Jin Yibiao2,Jin Hongxiao1,Wu Qiong1,Wang Xinqing1 (1. Zhejiang Province Key Laboratory of Magnetism,China Jiliang University,Hangzhou 310018,China) (2. Hengdian Group DMEGC Magnetic Limited Company,Jinhua 322118,China) |
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| Abstract: | A new nanocomposite magnetic material based on SBA-15 mesoporous molecular sieves was prepared by the sol-gel and immersion method, and then the microstructure and magnetic properties of CoFe2O4/Fe2O3-SBA-15 magnetic nanomaterials were characterized and discussed by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). As designed, the Fe2O3 nanoparticles were presented in the frame and the CoFe2O4 ferrites nanoparticles were confined in the mesopores of SBA-15. The results indicate that magnetic... |
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| Keywords: | SBA-15 sol-gel magnetic property |
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