A combination of electrospinning technique and hydrothermal process was carried out to fabricate zinc oxide nano-flakes wrapped carbon nanofibers (ZnO/CNFs) composite as an effective electrode material for supercapacitor. The morphology of the as-synthesized composite clearly revealed that the carbon nanofibers were successfully wrapped with ZnO nano-flakes. The electrochemical performance of the as-synthesized nanocomposite electrode was evaluated by the cyclic voltammetry (CV), galvanostatic charge–discharge (GDC), and electrochemical impedance spectroscopy (EIS), and compared with the pristine ZnO nanofibers. It was found that the composite exhibited a higher specific capacitance (260 F/g) as compared to pristine ZnO NFs (118 F/g) at the scan rate of 5 mV/s. Furthermore, the ZnO/CNFs composite also exhibited good capacity retention (73.33%). The obtained results indicated great potential applications of ZnO/CNFs composite in developing energy storage devices with high energy and power densities. The present work might provide a new route for utilizing ZnO based composites for energy storage applications.

结合静电纺丝技术和水热工艺，制备了氧化锌纳米薄片包裹的碳纳米纤维（ZnO / CNFs）复合材料，作为超级电容器的有效电极材料。合成后的复合材料的形态清楚地表明，碳纳米纤维已成功地被ZnO纳米薄片包裹。通过循环伏安法（CV），恒电流充放电（GDC）和电化学阻抗谱（EIS）评估了合成后的纳米复合电极的电化学性能，并将其与原始的ZnO纳米纤维进行了比较。发现在5 mV / s的扫描速率下，与原始ZnO NFs（118 F / g）相比，该复合材料显示出更高的比电容（260 F / g）。此外，ZnO / CNFs复合材料还表现出良好的容量保持率（73.33％）。所得结果表明ZnO / CNFs复合材料在开发具有高能量和功率密度的储能装置中具有巨大的潜在应用前景。当前的工作可能为利用基于ZnO的复合材料进行储能应用提供一条新途径。