Electric double-layer capacitors with tea waste derived activated carbon electrodes and plastic crystal based flexible gel polymer electrolytes

M. Suleman, Mohamad Deraman, Mohd. Amir Radhi Othman, Ramli Omar, M. A. Hashim, N. H. Basri, N. S M Nor, B. N M Dolah, M. F Y M Hanappi, E. Hamdan, N. E S Sazali, N. S M Tajuddin, M. R M Jasni

Research output: Contribution to journalArticle

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Abstract

We report a novel configuration of symmetrical electric double-layer capacitors (EDLCs) comprising a plastic crystalline succinonitrile (SN) based flexible polymer gel electrolyte, incorporated with sodium trifluoromethane sulfonate (NaTf) immobilised in a host polymer poly (vinylidine fluoride-co-hexafluoropropylene) (PVdF-HFP). The cost-effective activated carbon powder possessing a specific surface area (SSA) of ∼ 1700 m2g-1 containing a large proportion of meso-porosity has been derived from tea waste to use as supercapacitor electrodes. The high ionic conductivity (∼3.6×10-3 S cm-1 at room temperature) and good electrochemical stability render the gel polymer electrolyte film a suitable candidate for the fabrication of EDLCs. The performance of the EDLCs has been tested by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and galvanostatic charge-discharge studies. The performance of the EDLC cell is found to be promising in terms of high values of specific capacitance (∼270 F g-1), specific energy (∼ 36 Wh kg-1), and power density (∼ 33 kW kg-1).

Original languageEnglish
Article number012086
JournalJournal of Physics: Conference Series
Volume739
Issue number1
DOIs
Publication statusPublished - 23 Sep 2016

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electrochemical capacitors
activated carbon
plastics
electrolytes
gels
electrodes
polymers
crystals
succinonitrile
sulfonates
ion currents
fluorides
radiant flux density
proportion
capacitance
sodium
impedance
costs
porosity
fabrication

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Electric double-layer capacitors with tea waste derived activated carbon electrodes and plastic crystal based flexible gel polymer electrolytes. / Suleman, M.; Deraman, Mohamad; Othman, Mohd. Amir Radhi; Omar, Ramli; Hashim, M. A.; Basri, N. H.; Nor, N. S M; Dolah, B. N M; Hanappi, M. F Y M; Hamdan, E.; Sazali, N. E S; Tajuddin, N. S M; Jasni, M. R M.

In: Journal of Physics: Conference Series, Vol. 739, No. 1, 012086, 23.09.2016.

Research output: Contribution to journalArticle

Suleman, M. ; Deraman, Mohamad ; Othman, Mohd. Amir Radhi ; Omar, Ramli ; Hashim, M. A. ; Basri, N. H. ; Nor, N. S M ; Dolah, B. N M ; Hanappi, M. F Y M ; Hamdan, E. ; Sazali, N. E S ; Tajuddin, N. S M ; Jasni, M. R M. / Electric double-layer capacitors with tea waste derived activated carbon electrodes and plastic crystal based flexible gel polymer electrolytes. In: Journal of Physics: Conference Series. 2016 ; Vol. 739, No. 1.
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