Related Experiment Video
Updated: Jan 29, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Electrochemical Studies on Tamarindus indica Fruit Shell Bio-Waste Derived Nanoporous Activated Carbons for
M Sivachidambaram1, J Judith Vijaya1, K Niketha2
1Catalysis and Nanomaterials Research Laboratory, Department of Chemistry, Loyola College (Autonomous), Chennai 600034, India.
Abstract:
Supercapacitors are perfect energy storage devices; they can be charged almost instantly and release energy over a long period. Another advantage of using supercapacitors is their multipletimes chargeable behavior with minimum degradation in performance. Herein, we report the nanoporous activated carbon based modified electrodes prepared by using phosphoric acid (PA) activation method at different temperatures (600, 700, 800, and 900 °C) using bio-waste precursor, Tamarindus indica (T. indica) fruit shell. Because of their excellent energy storage capacity, in the present work, supercapacitive behavior of the nanoporous activated carbon based modified electrode has been demonstrated and hence the electrochemical properties of the developed supercapacitor electrodes are analyzed using cyclic voltammetry, galvanostatic charge-discharge measurements, electrochemical impedance spectroscopy and cycling studies using 1 M KOH as the electrolyte. The developed supercapacitor nanoporous activated carbon materials are characterized by X-ray diffraction, functional group analysis, surface area and morphological studies.
Related Concept Videos
What is an Electrochemical Gradient?
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
Fruit Development, Structure, and Function
The Carbon Cycle
Carbon Skeletons
Primary Active Transport
Secondary Active Transport

