碳纳米管承载纳米Fe_3O_4颗粒的制备(英文)  

An easy approach to encapsulating Fe_3O_4 nanoparticles in multiwalled carbon nanotubes

作　　者：李建华[1,6] 洪若瑜[1,2] 罗国华[3] 郑莹 李洪钟[2] 尉东光[5] 

机构地区：[1]苏州大学化学化工学院,江苏省有机合成重点实验室,江苏苏州215123 [2]中国科学院,过程工程研究所,多相反应重点实验室,北京100080 [3]清华大学化工系,绿色反应工程与工艺北京市重点实验室,北京100084 [4]新布伦瑞克大学化工系,加拿大弗雷德里克顿 [5]哈佛大学工程与应用科学学院,纳米尺寸研究中心,美国马萨诸塞州 [6]开滦中润煤化工有限公司,河北唐山063611

出　　处：《新型炭材料》2010年第3期192-198,共7页New Carbon Materials

基　　金：National Natural Science Foundation of China(20876100;20736004);State Key Lab.of Multiphase Complex Systems of the Chinese Academy of Science(No.2006-5);State Key Laboratory Of Coral Conversion of CAS(2006-902);Post-doctoral Science Fundation of Jiangsu Prov.,National Post-doctoral Science Fundation(20090451176);Commission of Science and Technology of Suzhou Municipality(YJS0917,SG0978)~~

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。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 Fe3 O4 nanoparticles in multiwalled carbon nano- tubes （MWCNTs）. Transmission and scanning electron microscopy, energy dispersive X-ray analysis, and X-ray pow- der diffraction measurements confirmed that the Fe3 O4 nanoparticles are encapsulated in the MWCNTs. The magnetic properties of the MWCNTs and the Fe3 04-filled MWCNTs were measured using a vibrating sample magnetometer. Re- sults showed that the Fe3 O4-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 MWC- NTs encapsulating Fe3 04 nanoparticles have potential applications in engineering and medicine.

关 键 词：FE3O4 碳纳米管 纳米材料 磁性能 饱和磁化强度 

分 类 号：TB383.1[一般工业技术—材料科学与工程]