Study of the electrochemical properties of a supercapacitor electrode based on nickel oxide of vacuum-arc synthesis
Karpov I. V.
1,2, Ushackov A. V.
1,2, Fedorov L. Yu.
1,2, Goncharova E. A.
2, Shaihadinov A. A.
21Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
2Siberian Federal University, Krasnoyarsk, Russia
Email: sfu-unesco@mail.ru
The working electrode of the electrochemical cell was obtained by vacuum-arc deposition of NiO nanoparticles on a graphite plate in an argon/oxygen atmosphere. The measurements were carried out using a two-electrode scheme. The electrochemical properties of the fabricated electrode (as part of an electrochemical cell) were studied using the electrochemical impedance method, cyclic voltammetry and galvanostatic charge-discharge. 6 M KOH was used as the electrolyte. Keywords: nickel oxide, vacuum arc, pseudocapacitance, supercapacitor.
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