高填充率 Fe2 O3@ MWCNTs 复合材料的制备

摘要

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（Fe2 O3@ MWCNTs）复合材料，并经过正交实验优化获得了制备 Fe2 O3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 Fe2 O3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 Fe2 O3，填充的空腔体积约占总空腔体积的90%。%Fe2 O3 - filled multi - walled carbon nanotubes(Fe2 O3 @ MWCNTs)composite material was prepared by a simple physical absorption method using molten Fe(NO3 )3 ·9H2 O as a precursor. And an optimal preparation of iron - oxide - filled carbon nanotubes composite material was obtained by using or-thogonal 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 com-ponents,structures,morphology and fill ratio of the composite material. Results show that 90% of the MWCNTs cavity is filled with Fe2 O3 particles with its amount of about 25. 79% based on the visual in-spection of all TEM images.