Fabrication and characterization of Multi-walled carbon nanotubes encapsulated magnetic nanoparticles
Multi-walled carbon nanotubes (MWCNTs) encapsulated magnetic Fe、Co and Fe/Co nanoparticles were prepared by in-situ anodic arc discharging plasma evaporation of the Fe and Co powder filled graphite bar in He. The products were characterized by the transmission electron microscopy (TEM), and electron energy disperse spectroscopy (EDS). The magnetic properties of the products were characterized by vibration sample magnetometer (VSM). The experimental results show that the MWCNTs encapsulated magnetic nanoparticles have size with an average diameter of 25 nm, the thickness of the coated MWCNTs layer from 10 nm to 20 nm. The core magnetic nanoparticles composed of Fe、Co and Fe/Co. The saturated magnetization, remanence and coercivity Hc of the sample are 17.30 emu/g, 3.96 emu/g and 396 Oe respectively.
MWCNTs Anodic Arcs alloy-filled magnetic properties
Weixue LI Yongfu CUI Yuan HAO Jianfeng DAI Qing WANG Zhongli WU
Department of Physics, Lanzhou University of Technology, Lanzhou, 730050, P R China;State Key Labora Department of Physics, Lanzhou University of Technology, Lanzhou, 730050, P R China State Key Laboratory of Advanced New Non-ferrous Materials, Gansu Province, Lanzhou University of Te
国际会议
郑州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）