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Carbon Nanofibers Wrapped With Zinc Oxide Nano-Flakes as Promising Electrode Material for Supercapacitors

Bishweshwar Pant, Mira Park, Gunendra Prasad Ojha, Juhyeong Park, Yun-Su Kuk, Eun-Jung Lee, Hak-Yong Kim, Soo-Jin Park

J Colloid Interface Sci. 2018 Jul 15;522:40-47.

PMID: 29574267

Abstract:

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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
LS71717 Carbon nanofibers Carbon nanofibers Price
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