Preparation and magnetic property of multi-walled carbon nanotube/α-Fe2O3 composites
In order to attain new functional nanomaterials with good magnetic property,multi-walled carbon nanotubes/hematite (MWNTs/α-Fe2O3) composites were synthesized using the co-deposition method.MWNTs/α-Fe2O3 composites were characterized by X-ray diffractometry (XRD),scanning electron microscopy (SEM),transmission electron microscopy(TEM),Raman spectroscopy and vibrating sample magnetometry (VSM).The experimental results show that the structure and magnetic properties of the MWNTs/α-Fe2O3 composites are related to the heat treatment temperature.MWNTs are modified by α-Fe2O3 nano-particles and α-Fe2O3 nanorods with a diameter of 10-50 nm after being treated at 450 ℃.When the heat treatment temperature exceeds 600 ℃,MWNTs are only modified by Fe3O4 particles.Furthermore,the MWNTs composites treated at 450 ℃ and 600 ℃ have good magnetic behaviour.
carbon nanotubes α-Fe2O3 magnetic property
CHEN Chuan-sheng LIU Tian-gui CHEN Xiao-hua LIN Liang-wu LIU Qi-cheng XIA Qing NING Zhen-wu
State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China;College of College of Physics and Microelectronic Science,Hunan University,Changsha 410082,China College of Physics and Electronic Science,Changsha University of Science and Technology,Changsha 410 State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China
国际会议
2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)
长沙
英文
1567-1571
2009-11-22（万方平台首次上网日期，不代表论文的发表时间）