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Synthesis of Novel Fe-doped Amorphous TiO2/C Nanofibers for Supercapacitors Applications

机译:新型Fe掺杂非晶TiO 2 / C纳米纤维的制备及其在超级电容器中的应用

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In this study, novel Fe-doped amorphous TiO2/C nanofibers were successfully synthesized using asimple electrospinning technique. Typically, calcination of electrospun mats composed of titaniumisopropoxide, iron acetate and polyvinylpyrrolidone (PVP) in argon atmosphere resulted in producingthe introduced nanofibers. Scanning electronic microscopy (SEM), X-ray diffraction (XRD),transmission electron microscope (TEM), and X-ray photoelectron spectroscopy (XPS) were used forcharacterization of the produced nanofibers. The obtained nanofibers exhibit good electrochemicalproperties, presenting enhanced capacitive behavior with maximum specific capacitance of 137 F/g ata scan rate of 5mV/s in 1M KOH aqueous solution. The enhancement in the capacitance property ofthese materials could be attributed to the increased conductivity of TiO2. Remarkably, it exhibits anexcellent cycling stability.
机译:在这项研究中,使用简单的电纺技术成功地合成了新型的掺铁非晶TiO2 / C纳米纤维。通常,在氩气氛中煅烧由异丙醇钛,乙酸铁和聚乙烯吡咯烷酮(PVP)组成的电纺垫会产生引入的纳米纤维。使用扫描电子显微镜(SEM),X射线衍射(XRD),透射电子显微镜(TEM)和X射线光电子能谱(XPS)表征了所生产的纳米纤维。获得的纳米纤维表现出良好的电化学性能,在1M KOH水溶液中具有137 F / g的最大比电容和5mV / s的最大扫描速率,表现出增强的电容性能。这些材料的电容性质的增强可以归因于TiO 2的电导率的增加。值得注意的是,它具有出色的循环稳定性。

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