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Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash

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2017
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Authors
Martinović, Sanja
Vlahović, Milica
Ponomaryova, Elena
Ryzhkov, I. V.
Jovanović, M.
Busatlic, I.
Volkov-Husović, Tatjana
Stević, Zoran
Article (Published version)
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Abstract
The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega... and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.

Keywords:
supercapacitors / activated carbon / fly ash / laser solidification / NaNO3
Source:
International Journal of Electrochemical Science, 2017, 12, 8, 7287-7299
Publisher:
  • Esg, Belgrade
Funding / projects:
  • Implementation of new technical, technological and environmental solutions in the mining and metallurgical operations RBB and RBM (RS-33007)
  • Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
  • New approach in designing materials for energy conversion and energy storage systems (RS-172060)

DOI: 10.20964/2017.08.63

ISSN: 1452-3981

WoS: 000408476400032

Scopus: 2-s2.0-85028467036
[ Google Scholar ]
2
1
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2174
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Ponomaryova, Elena
AU  - Ryzhkov, I. V.
AU  - Jovanović, M.
AU  - Busatlic, I.
AU  - Volkov-Husović, Tatjana
AU  - Stević, Zoran
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2174
AB  - The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash
VL  - 12
IS  - 8
SP  - 7287
EP  - 7299
DO  - 10.20964/2017.08.63
ER  - 
@article{
author = "Martinović, Sanja and Vlahović, Milica and Ponomaryova, Elena and Ryzhkov, I. V. and Jovanović, M. and Busatlic, I. and Volkov-Husović, Tatjana and Stević, Zoran",
year = "2017",
abstract = "The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash",
volume = "12",
number = "8",
pages = "7287-7299",
doi = "10.20964/2017.08.63"
}
Martinović, S., Vlahović, M., Ponomaryova, E., Ryzhkov, I. V., Jovanović, M., Busatlic, I., Volkov-Husović, T.,& Stević, Z.. (2017). Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash. in International Journal of Electrochemical Science
Esg, Belgrade., 12(8), 7287-7299.
https://doi.org/10.20964/2017.08.63
Martinović S, Vlahović M, Ponomaryova E, Ryzhkov IV, Jovanović M, Busatlic I, Volkov-Husović T, Stević Z. Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash. in International Journal of Electrochemical Science. 2017;12(8):7287-7299.
doi:10.20964/2017.08.63 .
Martinović, Sanja, Vlahović, Milica, Ponomaryova, Elena, Ryzhkov, I. V., Jovanović, M., Busatlic, I., Volkov-Husović, Tatjana, Stević, Zoran, "Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash" in International Journal of Electrochemical Science, 12, no. 8 (2017):7287-7299,
https://doi.org/10.20964/2017.08.63 . .

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