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Recent Innovations in Chemical Engineering

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ISSN (Print): 2405-5204
ISSN (Online): 2405-5212

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Research Article

Facile Preparation of Activated Carbon/Zinc Oxide Nanocomposite for Supercapacitor Application

Author(s): Nurul Infaza Talalah Ramli*, Hartini Ahmad Rafaie, Muhd Firdaus Kasim and Hanifa Binti Ibno

Volume 13, Issue 3, 2020

Page: [223 - 231] Pages: 9

DOI: 10.2174/2405520412666191118111639

Price: $65

Abstract

Objective: An efficient and facile preparation route has been developed to prepare activated carbon (AC)/zinc oxide (ZnO) nanocomposite electrodes for the supercapacitor electrode.

Methods: The zinc oxide nanostructure was synthesized via the sol-gel method by using conventional hexamethylenetetramine (HMTA) reagent as the reducing agent.

Results: The physicochemical and electrochemical properties of the nanocomposites were characterized by X-ray diffraction analysis (XRD) and cyclic voltammetry (CV) analysis, respectively. 10 wt% of ZnO loading shows an optimum specific capacitance of 398 F/g at a scan rate of 50 mV/s. The optimum sample retained 96% of its initial specific capacitance upon 100 consecutive cycles.

Conclusion: The enhanced specific capacitance can be ascribed to the synergistic effect of the individual properties of AC and ZnO.

Keywords: Supercapacitor, activated carbon, zinc oxide, electrochemical, energy storage, X-ray.

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