Original scientific paper
https://doi.org/https://doi.org/10.5599/jese.2439
Effect of CoO loading on electrochemical properties of activated carbon from sugarcane bagasse
Kyfti Yolanda Siburian
; Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pertamina, Jakarta, Indonesia
Al Nadine De Nasti
; Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pertamina, Jakarta, Indonesia
Enjeli Rotama Sidauruk
; Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pertamina, Jakarta, Indonesia
Haryo Satriya Oktaviano
; Research and Technology Innovation, PT Pertamina (Persero), Jakarta, Indonesia
Nona Merry M. Mitan
; Department of Chemistry, Faculty of Science and Computer, Universitas Pertamina, Jakarta, Indonesia
Lisna Efiyanti
; Research Center for Biomass and Bioproduct, National Research and Innovation Agency, Jl. Raya Bogor KM 46, Bogor 16911, Indonesia
Nur Adi Saputra
; Research Center for Biomass and Bioproduct, National Research and Innovation Agency, Jl. Raya Bogor KM 46, Bogor 16911, Indonesia
Nur Layli Amanah
; Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pertamina, Jakarta, Indonesia
Agung Nugroho
; Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pertamina, Jakarta, Indonesia
Abstract
Activated carbon is synthesized from sugarcane bagasse (SB) through a pre-carbonization process in a muffle furnace at 400 °C, followed by carbonization and activation using the pyrolysis method at 800 °C. In the activation process, pre-carbonized SB is activated using 0.1 M NaOH. The activated carbon is then impregnated with cobalt oxide (CoO) using a hydrothermal method at 110 °C to improve its electrochemical performance. After impregnation, the presence of CoO is confirmed by X-ray diffraction patterns. Scanning electron microscopy suggests that the samples' morphology shows pore structures. Electrochemical properties are measured by cyclic voltammetry and galvanostatic charging-discharging techniques using a three-electrode system with 1 M Na2SO4 as an electrolyte. It is found that the specific capacitance of activated carbon from SB is 89.53 F/g, while after impregnation with CoO, it increases to 102.04 F/g at the same current density of 0.05 A/g.
Keywords
Biomass; sugar industry byproduct; activated carbon production; cobalt oxide impregnation; specific capacitance
Hrčak ID:
323664
URI
Publication date:
10.12.2024.
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