材料科学
超级电容器
静电纺丝
循环伏安法
介电谱
纳米复合材料
纳米纤维
复合数
碳纳米纤维
锌
化学工程
电极
纳米颗粒
电化学
复合材料
纳米技术
碳纳米管
化学
冶金
聚合物
物理化学
工程类
作者
Bishweshwar Pant,Soo‐Jin Park,Gunendra Prasad Ojha,Juhyeong Park,Yun-Su Kuk,Eunjung Lee,Hee Young Kim,Soo‐Jin Park
标识
DOI:10.1016/j.jcis.2018.03.055
摘要
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI