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Optimizing the Eco-Friendly Electrode Analysis from Theobroma cacao Peels Activated Carbon |
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PP: 97-104 |
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doi:10.18576/ijtfst/140204
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Author(s) |
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Yuli Yetri,
Rama Fikri Nuradi,
Rusdianasari Rusdianasari,
Syaifa Mulyadi,
Daisuke Tashima,
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Abstract |
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| An investigation has been successfully performed on cocoa pods activated carbon as a fundamental component for electrodes of supercapacitor. The process of producing activated carbon begins by drying cocoa pods in the sunshine and continues with drying in the oven, pre-carbonization, grating, filtering, activation of chemical with Kalium Hydroxide (KOH) at concentrations of 0.3 and 0.4 Molar, pellet sizing, continue carbonization at 600°C is followed by pellet polishing and physical activation at 600, 700, 800, and 900°C for a duration of 4 hours. Resulting supercapacitor electrodes are characterized by SEM-EDX, XRD, CV, XRF, and BET. Physical activation data showed that the best conditions were acquired at 700°C using a 0.4 Molar Kalium Hydroxide activator, the electrode density was obtained at 0.801 g/cm3. According to SEM analysis, the holes ranged in size from 0.44 μm to 0.98 μm, and the EDX data indicated that the electrode samples carbon content was 91.49%. The data of XRD showed that the carbon electrodes structure was amorphous by angles of diffraction (2θ) of 23.569° and 44.781°. The surface area obtained from the BET analysis is 360.290 m2/g. The best specific capacitance of 140.2 F/g with an activation time of 2.5 hours was found by electrochemical property analysis using the cyclic voltametric technique. The characterizations findings indicate that cocoa pod activated carbon could potentially find usage as a foundational substance for supercapacitor electrodes.
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