Graphene as conductive additives in binderless activated carbon electrodes for power enhancement of supercapacitor

N. S M Nor, Mohamad Deraman, M. Suleman, M. D M Norizam, N. H. Basri, N. E S Sazali, E. Hamdan, M. F Y M Hanappi, N. S M Tajuddin, Mohd. Amir Radhi Othman, Siti Aisyah Shamsudin, Ramli Omar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Carbon based supercapacitor electrodes from composite of binderless activated carbon and graphene as a conductive additive were fabricated with various amount of graphene (0, 2, 4, 6, 8 and 10 wt%). Graphene was mixed in self-adhesive carbon grains produced from pre-carbonized powder derived from fibers of oil palm empty fruit bunches and converted into green monoliths (GMs). The GMs were carbonized (N2) and activated (CO2) to produce activated carbon monoliths (ACMs) electrodes. Porosity characterizations by nitrogen adsorption-desorption isotherm method shows that the pore characteristics of the ACMs are influenced by the graphene additive. The results of galvanostatic charge-discharge tests carried out on the supercapacitor cells fabricated using these electrodes shows that the addition of graphene additive (even in small amount) decreases the equivalent series resistance and enhances the specific power of the cells but significantly lowers the specific capacitance. The supercapacitor cell constructed with the electrode containing 4 wt % of graphene offers the maximum power (175 W kg-1) which corresponds to an improvement of 55%. These results demonstrate that the addition of graphene as conductive additive in activated carbon electrodes can enhance the specific power of the supercapacitor.

Original languageEnglish
Title of host publication2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1784
ISBN (Electronic)9780735414464
DOIs
Publication statusPublished - 17 Nov 2016
Event2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016 - Selangor, Malaysia
Duration: 13 Apr 201614 Apr 2016

Other

Other2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016
CountryMalaysia
CitySelangor
Period13/4/1614/4/16

Fingerprint

electrochemical capacitors
activated carbon
graphene
electrodes
augmentation
cells
porosity
fruits
carbon
adhesives
isotherms
oils
capacitance
desorption
nitrogen
adsorption
composite materials
fibers

Keywords

  • Activated carbon electrode
  • Graphene
  • Specific energy
  • Specific power
  • Supercapacitor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Nor, N. S. M., Deraman, M., Suleman, M., Norizam, M. D. M., Basri, N. H., Sazali, N. E. S., ... Omar, R. (2016). Graphene as conductive additives in binderless activated carbon electrodes for power enhancement of supercapacitor. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium (Vol. 1784). [040032] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966818

Graphene as conductive additives in binderless activated carbon electrodes for power enhancement of supercapacitor. / Nor, N. S M; Deraman, Mohamad; Suleman, M.; Norizam, M. D M; Basri, N. H.; Sazali, N. E S; Hamdan, E.; Hanappi, M. F Y M; Tajuddin, N. S M; Othman, Mohd. Amir Radhi; Shamsudin, Siti Aisyah; Omar, Ramli.

2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016. 040032.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nor, NSM, Deraman, M, Suleman, M, Norizam, MDM, Basri, NH, Sazali, NES, Hamdan, E, Hanappi, MFYM, Tajuddin, NSM, Othman, MAR, Shamsudin, SA & Omar, R 2016, Graphene as conductive additives in binderless activated carbon electrodes for power enhancement of supercapacitor. in 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. vol. 1784, 040032, American Institute of Physics Inc., 2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016, Selangor, Malaysia, 13/4/16. https://doi.org/10.1063/1.4966818
Nor NSM, Deraman M, Suleman M, Norizam MDM, Basri NH, Sazali NES et al. Graphene as conductive additives in binderless activated carbon electrodes for power enhancement of supercapacitor. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784. American Institute of Physics Inc. 2016. 040032 https://doi.org/10.1063/1.4966818
Nor, N. S M ; Deraman, Mohamad ; Suleman, M. ; Norizam, M. D M ; Basri, N. H. ; Sazali, N. E S ; Hamdan, E. ; Hanappi, M. F Y M ; Tajuddin, N. S M ; Othman, Mohd. Amir Radhi ; Shamsudin, Siti Aisyah ; Omar, Ramli. / Graphene as conductive additives in binderless activated carbon electrodes for power enhancement of supercapacitor. 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016.
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abstract = "Carbon based supercapacitor electrodes from composite of binderless activated carbon and graphene as a conductive additive were fabricated with various amount of graphene (0, 2, 4, 6, 8 and 10 wt{\%}). Graphene was mixed in self-adhesive carbon grains produced from pre-carbonized powder derived from fibers of oil palm empty fruit bunches and converted into green monoliths (GMs). The GMs were carbonized (N2) and activated (CO2) to produce activated carbon monoliths (ACMs) electrodes. Porosity characterizations by nitrogen adsorption-desorption isotherm method shows that the pore characteristics of the ACMs are influenced by the graphene additive. The results of galvanostatic charge-discharge tests carried out on the supercapacitor cells fabricated using these electrodes shows that the addition of graphene additive (even in small amount) decreases the equivalent series resistance and enhances the specific power of the cells but significantly lowers the specific capacitance. The supercapacitor cell constructed with the electrode containing 4 wt {\%} of graphene offers the maximum power (175 W kg-1) which corresponds to an improvement of 55{\%}. These results demonstrate that the addition of graphene as conductive additive in activated carbon electrodes can enhance the specific power of the supercapacitor.",
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