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

Author(s):

Nurul Infaza Talalah Ramli*, Hartini Ahmad Rafaie, Muhd Firdaus Kasim and

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

Affiliation:

Faculty of Applied Science, Universiti Teknologi MARA Pahang, Bandar Tun Abdul Razak Jengka, Pahang, Faculty of Applied Science, Universiti Teknologi MARA Pahang, Bandar Tun Abdul Razak Jengka, Pahang, Centre for Nanomaterials Research, Institute of Science, Universiti Teknologi MARA, Shah Alam, Selangor, Faculty of Applied Science, Universiti Teknologi MARA Pahang, Bandar Tun Abdul Razak Jengka, Pahang



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