Formation and Characterization of Carbon and Nickel Oxide/Carbon Composites for Supercapacitors
Z. Kavaliauskasa, b, L. Marcinauskasa, c and P. Valatkeviciusa
aLithuanian Energy Institute, Breslaujos 3, LT-4440, Kaunas, Lithuania
bKaunas University of Applied Sciences, PramonÄ—s 20, LT-50468, Kaunas, Lithuania
cKaunas University of Technology, Studentu 50, LT-51368, Kaunas, Lithuania
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In this study a carbon and NiO/carbon electrodes were prepared and investigated. The surface roughness increases with the increase of the torch power. The addition of the NiO changes the surface structure from a snowflake-like to a mesh-like. It was demonstrated that the addition of the nickel oxide to amorphous carbon increases the specific capacitance of composite electrode. However, the NiO/carbon electrodes have a lower breakdown voltage values and longer charge-discharge cycles.
DOI: 10.12693/APhysPolA.119.253
PACS numbers: 81.15.-z, 81.05.U-, 68.55.J-