Pembuatan Nanoserat Selulosa Tandan Kosong Kelapa Sawit sebagai Elektroda Superkapasitor Berbasis Nikel Oksida dan Grafena Oksida

Abstract

Preparation of palm empty fruit bunch cellulose nanostructures as supercapacitor electrodes based on Nickel Oxide and Graphene Oxide has been carried out. In this study, characterization was carried out, among others: morphology test with Scanning Electron Microscope (SEM), nanofiber size with Particle Size Analyzer (PSA) test, to determine the functional groups (FT-IR), and electrochemical tests using Cyclic Voltametry (CV) and Galvanostatic charge discharge (GCD). Cellulose nanofibers from TKKS have been successfully isolated by ultrasonification method and tested by particle size analyzer (PSA) test and obtained the size of TKKS cellulose nanofibers 144 nm. In this study, 3ml of cellulose nanofibers, 60 mg of graphene oxide (GO) were used with variations in the composition of nickel oxide 30 mg, 60 mg, and 90 mg stirred for 1 hour at 300 rpm until homogeneous then spread on aluminum foil then dried in the oven. The highest specific capacitance value is 0.861 F/g with an area of 0.000917 cm2. The addition of nickel oxide affects the specific capacitance value of the supercapacitor electrode. Then the highest energy density value of 1.80 Wh/kg and the highest power density value of 28.173 W/kg found in the NSSNiO90 sample. This shows the NSSNiO90 sample as the best composition as a material for making supercapacitor electrodes.