电纺CoFe_2O_4纳米纤维及其磁性研究

Electrospinning preparation and magnetic properties of CoFe_2O_4 nanofibers

采用溶胶-凝胶过程和静电纺丝技术,以三氯化铁(FeCl3.6H2O)、醋酸钴(Co(CH3COO)2.4H2O)和聚乙烯醇(PVA)为前驱物,制得PVA/FeCl3/Co(CH3COO)2复合纳米纤维.经高温煅烧,制备了CoFe2O4纳米纤维.利用扫描电镜(SEM)、红外光谱(FT-IR)、差热-热重(TG-DTA)和X射线衍射(XRD)等分析测试手段对样品进行了表征,并研究了其磁性质.结果表明:静电纺丝技术制备的CoFe2O4纳米纤维为规则的一维结构,直径分布均匀,具有良好的铁磁性.

PVA/FeCl3/Co （CH3COO）2 composite nanofibers were synthesized by using sol-gel processing combination with electrospinning technology, where polyacrylonitrile and manganese acetate were used as precursors. After high temperature calcination, CoFe2O4 nanofibers were successful prepared. The samples were characterized by scanning electron microscopy （SEM）, fourier transform infrared （ FT-IR ） spectroscopy, thermogravimetry-differential thermal （ TG-DTA ） and X-ray diffraction （XRD） analysis, respectively. The results showed that CoFe2O4 nanofibers with onedimensional structure had been prepared uniformly. And, magnetic property measurements suggested that the CoFe2O4 nanofibers exhibited ferromagnetic paramagnetic.