Karakteristik Lapisan Graphene Oxide yang Dibuat dengan Teknik UV Oven Spraying sebagai elektroda Sel Superkapasitor

Abstract

Abstrak. Reduced Graphene Oxides (RGO) merupakan kandidat bahan elektroda superkapasitor yang menjanjikan. Lapisan tipis GO pada substrat Cu (Cu|GO) dibuat dari dispersi graphene oxide (GO) menggunakan teknik UV oven spraying dengan jumlah pengulangan deposisi sebanyak 25 kali. Kinerja elektroda Cu|RGO diuji dengan pengukuran Cyclic Voltammetry (CV) pada model sel kapasitor elektroda tunggal (Cu|GO-Pt) dan model sel kapasitor elektroda ganda (Cu|GO-Cu|GO). Pengukuran dilakukan pada rentang tegangan-1,0 V sampai-0,1 V dengan variasi scan rate antara 25-125 mV/s. Kurva cyclic voltammogram (CV) tersebut digunakan untuk menentukan nilai kapasitansi spesifik (Csp), daya spesifik (Psp) dan energi spesifik (Esp) dari model superkapasitor. Abstract. Reduced Graphene Oxides (RGO) is a promising candidate as material for supercapacitor electrodes. material merupakan kandidat bahan elektroda superkapasitor yang menjanjikan. Graphene Oxide thin films on Cu substrate (Cu|GO) were prepared using GO dispersion by UV oven spraying method with number of spraying repetition of 25 layers. Performance of Cu|GO as supercapacitor electrodes were measured using Cyclic Voltammetry (CV) with single electrode cell model (Cu|GO-Pt) and double electrodes cell model (Cu|GO-Cu|GO). The CV measurement were conducted in potential window of-1.0 V to-0.1 V with varied scan rate of 25-125 mV/s. The cyclic voltammogram (CV) curves were used to determine specific capacitance (Csp), specific power (Psp) and specific energy (Esp) of the supercapacitor model.