Cycling and floating performance of symmetric supercapacitor derived from coconut shell biomass

Farshad Barzegar; Abubakar A. Khaleed; Faith U. Ugbo; Kabir O. Oyeniran; Damilola Y. Momodu; Abdulhakeem Bello; Julien K. Dangbegnon; Ncholu Manyala

doi:10.1063/1.4967348

AIP Advances (Nov 2016)

Cycling and floating performance of symmetric supercapacitor derived from coconut shell biomass

Farshad Barzegar,
Abubakar A. Khaleed,
Faith U. Ugbo,
Kabir O. Oyeniran,
Damilola Y. Momodu,
Abdulhakeem Bello,
Julien K. Dangbegnon,
Ncholu Manyala

Affiliations

Farshad Barzegar: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Abubakar A. Khaleed: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Faith U. Ugbo: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Kabir O. Oyeniran: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Damilola Y. Momodu: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Abdulhakeem Bello: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Julien K. Dangbegnon: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa
Ncholu Manyala: Department of Physics, Institute of Applied Materials, SARCHI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria 0028, South Africa

DOI: https://doi.org/10.1063/1.4967348
Journal volume & issue: Vol. 6, no. 11
pp. 115306 – 115306-8

Abstract

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This work present two-step synthesizes route to low-cost mesoporous carbon from coconut shell. The electrochemical characterization of the coconut shell based activated carbon (CSAC) material as electrode for supercapacitor showed a specific capacitance of 186 F g-1, energy density of ∼11 Wh kg-1 and power density of 325 W kg-1 at a 0.5 A g-1 with an excellent stability after floating for 100 h and cycling for 10000 cycles in polymer gel electrolyte. The CSAC showed very good potential as a stable material for supercapacitors desirable for high power applications.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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