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Tunable properties of GO-doped CoFe2O4 nanofibers elaborated by electrospinning

机译：电纺丝制备的GO掺杂CoFe2O4纳米纤维的可调谐性能

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摘要

Cobalt ferrite (CoFe2O4) one-dimensional nanofibers doped with graphene oxide (GO) were successfully synthesized for the first time via an electrospinning technique. The as-spun nanofibers were calcined at 600 degrees C for 3 h with a slow heating rate of 2 degrees C min(-1). Their morphological and structural properties were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), Transmission Electron Microscopy, energy-dispersive X-ray spectroscopy (EDX), and Raman spectroscopy. All GO-doped CoFe2O4 fibers possessed a pure spinel structure. The average fiber diameter and grain size were influenced by the GO weight amount. The effect of the graphene oxide incorporation on the magnetic properties of the fibers was investigated by superconducting quantum interference device (SQUID) magnetometry. At room temperature, a slight enhancement of the saturation magnetization was detected while increasing the GO amount. Therefore, doping with GO is able to tune the magnetic properties of the CoFe2O4 fibers elaborated by the electrospinning technique.
机译：首次通过电纺技术成功合成了掺杂有氧化石墨烯（GO）的铁氧体钴（CoFe2O4）一维纳米纤维。初纺纳米纤维在600摄氏度下煅烧3小时，缓慢加热速率为2摄氏度min（-1）。通过扫描电子显微镜（SEM），X射线衍射（XRD），透射电子显微镜，能量色散X射线光谱（EDX）和拉曼光谱研究了它们的形态和结构特性。所有GO掺杂的CoFe2O4纤维均具有纯尖晶石结构。平均纤维直径和晶粒尺寸受GO重量的影响。通过超导量子干涉仪（SQUID）磁力分析法研究了氧化石墨烯掺入对纤维磁性的影响。在室温下，检测到饱和磁化强度略有增加，同时增加了GO量。因此，GO掺杂能够调节通过电纺丝技术制成的CoFe2O4纤维的磁性。

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