高填充率Fe_2O_3@MWCNTs复合材料的制备

Fabrication of Fe_2O_3-Filled Multi-Walled Carbon Nanotubes Composite Material with High Fill Ratio

采用简单的物理吸附方法制备了高填充率氧化铁@多壁碳纳米管(Fe2O3@MWCNTs)复合材料,并经过正交实验优化获得了制备Fe2O3填充碳纳米管复合材料的最优方案。利用同步热分析仪(DSC-TG)、X射线衍射仪(XRD)、场发射扫描电子显微镜系统(SEM)、场发射透射电子显微分析系统(TEM)等测试手段对复合材料的组分、结构、形貌和填充率进行了表征和分析。结果表明该复合材料中Fe2O3的质量分数为25.79%,TEM结果显示,视野内的大部分碳纳米管内部空腔都填充了Fe2O3,填充的空腔体积约占总空腔体积的90%。

Fe2O3-filled multi-walled carbon nanotubes（ Fe2O3@ MWCNTs） composite material was prepared by a simple physical absorption method using molten Fe（ NO3）3·9H2O as a precursor. And an optimal preparation of iron-oxide-filled carbon nanotubes composite material was obtained by using orthogonal experiment. X-ray diffraction（ XRD）,scanning electron microscope（ SEM）,and transmission electron microscope（ TEM） and thermo gravimetric（ TG） were used to characterize and analyze the components,structures,morphology and fill ratio of the composite material. Results show that 90% of the MWCNTs cavity is filled with Fe2O3particles with its amount of about 25. 79% based on the visual inspection of all TEM images.