Carbon Nanosheets Decorated Activated Carbon Derived from Borassus Flabellifer Fruit Skin for High Performance Supercapacitors

Potphode, Darshna and Saha, Shalakha and Sharma, Chandra Shekhar (2020) Carbon Nanosheets Decorated Activated Carbon Derived from Borassus Flabellifer Fruit Skin for High Performance Supercapacitors. Journal of The Electrochemical Society, 167 (14). pp. 1-13. ISSN 0013-4651

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Here, we present an ingenious approach to convert bio-waste into porous carbon to fabricate a working electrode for the development of sustainable energy storage devices. Carbonization of Borassus Flabellifer fruit skin (BFFS) in an inert atmosphere was followed by KOH activation to synthesize partially graphitic carbon nanosheets attached to the porous carbon. Surface chemistry and porosity were tuned by varying the carbonization and activation temperature to achieve excellent control of the studied physiochemical properties. The as-obtained ABFFS-derived porous carbon exhibited a specific surface area of 1750 m2 g−1 with distinctive morphology, showing great prospects for energy storage. The unique content of minerals in BFFS led to a highly porous architecture with a substantial volume fraction having micro- and meso-porosity. Symmetric supercapacitors were fabricated with 1 M H2SO4 and EmimBF4 (ionic liquid) as electrolytes, and the specific capacitance reached values of 202 and 208 F g−1, respectively. The cycling stability of up to 94% at a current density of 2 A g−1 established a fairly stable performance for the supercapacitors based on biomass-derived carbon electrodes, and therefore, confirms the potential of BFFS-derived activated carbon for the advancement of supercapacitors based on bio-waste electrodes. © 2020 The Electrochemical Society (“ECS”).

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IITH Creators:
IITH CreatorsORCiD
Sharma, Chandra Shekhar
Item Type: Article
Uncontrolled Keywords: Activation temperatures; Inert atmospheres; Physio-chemical properties; Porous architectures; Specific capacitance; Stable performance; Sustainable energy; Working electrode
Subjects: Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 27 Oct 2022 08:48
Last Modified: 27 Oct 2022 08:48
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