Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage

The supercapacitor electrode has been synthesized using activated carbon from cocoa pods. Activated carbon was prepared by first drying the raw materials under the sunlight and followed by oven drying, pre-carbonization, milling, sieving, and chemical activation with 0.3 M and 0.4 M KOH solution. A...

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Main Authors: Rahma Fikri Nuradi, Mulda Muldarisnur, Yuli Yetri
Format: Article
Language:English
Published: Jurusan Fisika, FMIPA Universitas Andalas 2022-07-01
Series:JIF (Jurnal Ilmu Fisika)
Subjects:
Online Access:http://jif.fmipa.unand.ac.id/index.php/jif/article/view/471
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author Rahma Fikri Nuradi
Mulda Muldarisnur
Yuli Yetri
author_facet Rahma Fikri Nuradi
Mulda Muldarisnur
Yuli Yetri
author_sort Rahma Fikri Nuradi
collection DOAJ
description The supercapacitor electrode has been synthesized using activated carbon from cocoa pods. Activated carbon was prepared by first drying the raw materials under the sunlight and followed by oven drying, pre-carbonization, milling, sieving, and chemical activation with 0.3 M and 0.4 M KOH solution. After chemical activation, the activated carbon was printed into pellet form, carbonized at a temperature of 600 °C, followed by physical activation at a temperature of 700 °C for four hours before polishing. We found that the optimum conditions are 700 °C and 0.4 M. The density of the obtained carbon electrode is 0.810 g/cm3. The SEM micrographs show the formation of pores with a diameter of 0.44 μm and 0.98 μm. The carbon content in the electrode sample measured using electron dispersive spectroscopy is 91.49%. The XRD data shows that the carbon electrode is amorphous with a diffraction angle (2θ) at 23.569° and 44.781°. The optimum specific capacitance of the supercapacitor is 140.2 F/g obtained for the sample activated for 2.5 hours.
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spelling doaj.art-70b9b53d041740e8b8b874dbe6075c5e2022-12-22T04:39:17ZengJurusan Fisika, FMIPA Universitas AndalasJIF (Jurnal Ilmu Fisika)1979-46572614-73862022-07-0114210.25077/jif.14.2.86-94.2022Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage Rahma Fikri Nuradi0Mulda Muldarisnur1Yuli Yetri2Universitas AndalasUniversitas AndalasPoliteknik Negeri Padang The supercapacitor electrode has been synthesized using activated carbon from cocoa pods. Activated carbon was prepared by first drying the raw materials under the sunlight and followed by oven drying, pre-carbonization, milling, sieving, and chemical activation with 0.3 M and 0.4 M KOH solution. After chemical activation, the activated carbon was printed into pellet form, carbonized at a temperature of 600 °C, followed by physical activation at a temperature of 700 °C for four hours before polishing. We found that the optimum conditions are 700 °C and 0.4 M. The density of the obtained carbon electrode is 0.810 g/cm3. The SEM micrographs show the formation of pores with a diameter of 0.44 μm and 0.98 μm. The carbon content in the electrode sample measured using electron dispersive spectroscopy is 91.49%. The XRD data shows that the carbon electrode is amorphous with a diffraction angle (2θ) at 23.569° and 44.781°. The optimum specific capacitance of the supercapacitor is 140.2 F/g obtained for the sample activated for 2.5 hours. http://jif.fmipa.unand.ac.id/index.php/jif/article/view/471cocoaactivated carbon supercapacitorsenergy storagephysical properties
spellingShingle Rahma Fikri Nuradi
Mulda Muldarisnur
Yuli Yetri
Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage
JIF (Jurnal Ilmu Fisika)
cocoa
activated carbon
supercapacitors
energy storage
physical properties
title Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage
title_full Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage
title_fullStr Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage
title_full_unstemmed Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage
title_short Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage
title_sort synthesis of supercapacitor from cocoa fruit peel activated carbon for energy storage
topic cocoa
activated carbon
supercapacitors
energy storage
physical properties
url http://jif.fmipa.unand.ac.id/index.php/jif/article/view/471
work_keys_str_mv AT rahmafikrinuradi synthesisofsupercapacitorfromcocoafruitpeelactivatedcarbonforenergystorage
AT muldamuldarisnur synthesisofsupercapacitorfromcocoafruitpeelactivatedcarbonforenergystorage
AT yuliyetri synthesisofsupercapacitorfromcocoafruitpeelactivatedcarbonforenergystorage