硅酸盐学报2009，Vol.37Issue(10)：1772-1776,5.
化学沉淀-水热法合成高矫顽力碳纳米管磁性复合材料
SYNTHESIS OF A CARBON NANOTUBES MAGNETIC COMPOSITE BY CHEMICAL PRECIPITATION-HYDROTHERMAL PROCESS
摘要
Abstract
A highly coercive magnetic composite (Ni0.75Zr0.25Fe2O4-CNTs) of multi-walled carbon nanotube (CNTs) coated with Ni0.75Zr0.25Fe2O4 nanoerystals was synthesized by chemical precipitation-hydrothermal process. The composite was characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Fourier transform spectroscopy (FTIR) and vibrating sample magnetometer (VSM). The TEM images show that the CNTs surface is attached to Ni0.75Zr0.25Fe2O4 nanoerystals, and the average size of Ni0.75Zr0.25Fe2O4 nanocrystals is 8-15 nm. The XRD results indicate that Ni0.75Zr0.25Fe2O4-CNTs can be obtained at 200 ℃ as an appropriate hydrothermal temperature, which is lower than a synthesis temperature for single phase Ni0.75Zr0.25Fe2O4 nanocrystals. The particle size of Ni0.75Zr0.25Fe2O4 attached on the surface of CNTs is about 16 nm. The FTIR results reflect that the bands at 590 and 414 cm-1 are the characteristic bands of NiZn ferrite. The magnetic measurement by the VSM show that the compos-ite has a high coercive force of 27.244 36 RA/m at room temperature.关键词
碳纳米管/包覆/化学处理/磁性能Key words
carbon nanotubes/ coating/ chemical treatment/ magnetic properties引用本文复制引用
曹慧群,魏波,王银治,李耀刚,朱美芳..化学沉淀-水热法合成高矫顽力碳纳米管磁性复合材料[J].硅酸盐学报,2009,37(10):1772-1776,5.基金项目
深圳市功能高分子重点实验室开放基金(FP20090016)资助项目. （FP20090016）
