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碳纳米管承载纳米Fe3O4颗粒的制备(英文)
An easy approach to encapsulating Fe3O4 nanoparticles in multiwalled carbon nanotubes
【摘要】 采用一种简单又经济的方法将Fe3O4纳米颗粒填充到碳纳米管中。透射电镜(TEM)、扫描电镜(SEM)及其能谱附件(EDX)和X射线多晶衍射(XRD)测试结果表明:Fe3O4纳米颗粒成功地填充到碳纳米管中。材料的磁性能测试结果表明:碳纳米管中填充Fe3O4纳米颗粒后,在常温下具有超顺磁性,其饱和磁化强度由0.35emu/g增大到了13.15emu/g。Fe3O4纳米颗粒填充的碳纳米管可望应用于工程和医学领域。
【Abstract】 Carbon nanotubes filled with magnetic materials are very interesting as new materials for applications in biomedicine.A simple and efficient method was developed to encapsulate Fe3O4 nanoparticles in multiwalled carbon nanotubes(MWCNTs).Transmission and scanning electron microscopy,energy dispersive X-ray analysis,and X-ray powder diffraction measurements confirmed that the Fe3O4 nanoparticles are encapsulated in the MWCNTs.The magnetic properties of the MWCNTs and the Fe3O4-filled MWCNTs were measured using a vibrating sample magnetometer.Results showed that the Fe3O4-filled MWCNTs exhibited superparamagnetism at room temperature and possessed a higher saturation magnetization(Ms)(around 13.15 emu/g)than that of the unfilled ones(around 0.35 emu/g).The MWCNTs encapsulating Fe3O4 nanoparticles have potential applications in engineering and medicine.
【Key words】 Fe3O4 nanoparticles; Carbon nanotubes; Nanomaterials; Magnetic property; Saturation magnetization.;
- 【文献出处】 新型炭材料 ,New Carbon Materials , 编辑部邮箱 ,2010年03期
- 【分类号】TB383.1
- 【被引频次】16
- 【下载频次】378