Supercapacitor Electrodes Based on Corn Stalk Binderless Activated Carbon

Awitdrus, R. Juliani, E. Taer, R. Farma, Iwantono, Mohamad Deraman

Research output: Contribution to journalConference article

Abstract

Activated carbon electrodes from cornstalk core waste have been produced using combination of chemical and physical activation for supercapacitor application. Cornstalk was processed into self-adhesive carbon grains. The chemical activation of self-adhesive carbon grains was conducted using 0.4 M KOH at room temperature, and simultaneously followed by carbonized at 600°C in N 2 environment, and physical activation in the CO 2 environment with difference temperature of 600, 700 and 800°C using a multi-step heating profile. The physical properties of the cornstalk based activated carbon electrode which involve microstructure, functional groups and porosity parameter were evaluated using X-ray diffraction, Fourier transform infrared analysis, and N 2 adsorption/desorption isotherm at 77K, respectively. The electrochemical measurement of supercapacitor cells was conducted using cyclic voltammetry technique. The activation temperature of 700°C resulted cornstalk based activated carbon electrode with a higher BET surface area of 826 m 2 /g and stack diameter of 1.0461 nm, corresponding to higher of specific capacitance of 109 F/g.

Original languageEnglish
Article number012005
JournalJournal of Physics: Conference Series
Volume1120
Issue number1
DOIs
Publication statusPublished - 23 Dec 2018
Event8th International Conference on Theoretical and Applied Physics, ICTAP 2018 - Medan, Indonesia
Duration: 20 Sep 201821 Sep 2018

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corn
electrochemical capacitors
activated carbon
activation
electrodes
adhesives
carbon
temperature gradients
isotherms
physical properties
capacitance
desorption
porosity
microstructure
adsorption
heating
room temperature
profiles
cells
diffraction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Supercapacitor Electrodes Based on Corn Stalk Binderless Activated Carbon. / Awitdrus; Juliani, R.; Taer, E.; Farma, R.; Iwantono; Deraman, Mohamad.

In: Journal of Physics: Conference Series, Vol. 1120, No. 1, 012005, 23.12.2018.

Research output: Contribution to journalConference article

Awitdrus ; Juliani, R. ; Taer, E. ; Farma, R. ; Iwantono ; Deraman, Mohamad. / Supercapacitor Electrodes Based on Corn Stalk Binderless Activated Carbon. In: Journal of Physics: Conference Series. 2018 ; Vol. 1120, No. 1.
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