Journal of Materials Science Research and Reviews

Nontoxic Approach to Porous Carbon Activation from Cassava Peels Using Sodium Thiosulphate for Supercapacitor Applications

T. E. Amakoromo *

Department of Physics, University of Port Harcourt, Rivers state, Nigeria.

J. A. Amusan

Department of Physics, University of Port Harcourt, Rivers state, Nigeria.

O. E. Abumere

Department of Physics, University of Port Harcourt, Rivers state, Nigeria.

*Author to whom correspondence should be addressed.

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Abstract

Abundantly available cassava peels waste was used to prepare porous activated carbon using a nontoxic activating agent, sodium thiosulphate (Na₂S₂O₃). The activation was done under nitrogen flow at 800⁰C. The resulting porous carbon showed good surface area of 306 m²g^-1. The supercapacitor electrodes fabricated from the activated carbon exhibited excellent electrochemical characteristics; showing a specific capacitance of 93.4 Fg^-1 while withstanding excellent performance even up to a voltage window of 1.1V.

Keywords: Supercapacitors, cassava peels, activated carbon, specific capacitance, charge storage, porous carbon

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