PEMANFAATAN LIMBAH IJUK AREN (ARENGA PINNATA) SEBAGAI MATERIAL ELEKTRODA SEL SUPERKAPASITOR

Abstract

Supercapacitor electrodes made from Palm fiber were prepared by carbonization and activation process which consist of several steps such as pre-carbonization, milling,sieving, chemical activation, pelletization, and carbonization-physical activation. Chemical activation was performed using potassium hydroxide (KOH). KOH concentration on the activation process of palm fiber charcoal varied as much as 0,2 M, 0,3 M and 0,4 M. The activated carbon was made through the pre-carbonization using an electric oven at temperature of 100-250 0C. The carbonization process was conducted in N2 gas environment at 600 0C and followed by physical activation at a temperatur of 700 0 C using CO2 gas for 1 h. The physical property of electrodes analyzed is its density. The electrochemical properties of the electrodes were explored using a two-electrode system while the capacitive properties of the electrodes was determined using cyclic voltammetry. The electrochemical properties of the electrodes showed excellent capacitive properties of a supercapacitor cell, with very high specific capacitance of 162,99 F/g.