DEVELOPING OF HYBRID ELECTRODES FOR SUPERCAPACITORS FROM BIOMASSDERIVED ACTIVATED CARBONS WITH CARBON NANOTUBES
Keywords:
electrochemical capacitors, electrode, activated carbons, few-walled carbon nanotubesAbstract
In this paper, environmental clean, activated carbons (AC) and flexible, long, conductive FWCNT (Few walled carbon nanotubes) were used as a composite material to create a hybrid supercapacitor electrode without addition of polymer binder materials. In work to create electrode, an activated carbons (AC) was used, which was obtained from walnut shell (WS), apricot stones (AS) and activated carbon of brand YP- 80F (Kuraray Chemical Co., Osaka Japan) and FWCNT, in weight ratio AC:FWCNT 9:1. The strong hybrid electrodes AC-FWCNT were obtained by a light three-step method (mixing, dispersion and filtration). Electrochemical properties of the obtained electrodes were investigated by the method of Cyclic Voltammetry (CV). Also, the morphological properties of the obtained electrodes were studied by the Scanning Electron Microscope (SEM), the specific surface by the Brunauer-Emmett-Teller analysis. Based on the results of a study of the electrochemical characteristics of electrodes based on carbon materials, the AS-FWCNT, WS-FWCNT hybrid electrodes showed a high specific capacity than the YP-80FFWCNT electrodes.
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