Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/3480
Title: The Impact Of The Surface Morphology On Energy Characteristics Of Nanoporous Carbon Material
Authors: Ostafiychuk, B.
Budzulyak, Ivan
Rachiy, B.
Shyyko, L.
Lisovskyi, R.
Ivanichok, N.
Vashchynsky, V.
Keywords: activated carbon material
double electric layer
electrolyte
specific capacity
electrochemical capacitor
internal resistance,
Issue Date: 2014
Publisher: Vasyl Stefanyk Precarpathian National University
Citation: Ostafiychuk B. K. The Impact Of The Surface Morphology On Energy Characteristics Of Nanoporous Carbon Material / B. K. Ostafiychuk, I. M. Budzulyak, B. I. Rachiy, L. O. Shyyko, R. P. Lisovsky, N. Ya. Ivanichok, V. M. Vashchynsky // Journal of Vasyl Stefanyk Precarpathian National University. - 2014. - Vol. 1. - № 1. - P. 17-25.
Abstract: The impact of nanoporous carbon material (PCM) morphology on its electrochemical behavior in aqueous electrolyte has been studied. The optimum concentration of aqueous lithium sulfate which provides the maximum specific energy characteristics of capacitor-type systems C/Li2SO4/C is determined. Capacitive parameters of electrochemical capacitors (EC) in aqueous so­lutions of lithium, sodium and potassium sulfate which have different molar ratio have been stu­died by comparative analysis. Cyclic voltammograms at different scan rates show that the PCM ca­pacitive behavior in three electrolytes increases in the following order Li2SO4<Na2SO4<K2SO4. This imp­rovement could be a result of increasing the movement speed of hydrated ions in the volume of electrolyte and in the internal pores of PCM in the order Li+<Na+<K+. The obtained results give valuable information for the study of new hybrid supercapacitors.
URI: http://hdl.handle.net/123456789/3480
Appears in Collections:Vol. 1, № 1

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