Biomass stemmed activated carbon electrodes toward a significant electric double-layer capacitor
Abhimanyu Singh, Gaurav Nath, Pawan Singh Dhapola, Sushant Kumar, Tejas Sharma, Yew Hang Soo, Hieng Kiat Jun, Pramod K. Singh, Sunanda Kakroo, Aalia Farid, Marium Mateen Khan, Serguei V. Savilov, M. Z. A. Yahya, Bhawana Joshi
Abstract
Abstract The primary goal of the current study is to improve the specific capacitance of electric double-layer (EDLC) device using biomass (Tribulus Terrestris) derived activated carbon electrodes synthesized by chemical activation method. Furthermore, high surface area carbon electrodes are characterized using X-ray diffraction (XRD), RAMAN spectroscopy, and scanning electron microscopy (SEM) to confirm the morphological structure. Finally, the electrochemical performance of fabricated EDLC proves a good agreement data using Cyclic Voltammetry (CV), Low Impedance Spectroscopy (LIS), and Galvanostatic Charge–Discharge (GCD) analysis showing the high specific capacitance of 115 Fg −1 for the optimized 1:2 activated carbon material.