Structural, Microstructural and Electrochemical Properties of Carbonaceous Nanocomposite for Supercapacitor Applications

Abstract

In this paper, we prepared CCT nanocomposite comprising of Co 3 O 4 , carbon black and TiO 2 via microwave-assisted sol-gel technique. The composite is designed as electrode material for supercapacitor application. We have synthesised two samples namely CT and CCT where CT is optimised composite of carbon black and TiO 2 nanoparticle, and CCT is composite of Co 3 O 4 , carbon black and TiO 2, respectively. The prepared electrode material has been characterised by X-ray diffraction, field emission scanning electron microscopy, cyclic voltammetry (CV), galvanostatic charging-discharging (GCD) and electrochemical impedances spectroscopy (EIS). The structural and microstructural characterisation of the material confirms the formation of the crystal structure and nanocomposite. The CCT material shows better specific capacitances of 250 F g −1 at a rate of ten millivolts per second which is advanced than that of CT composite. The CCT sample exhibits energy density (E d ) of 46 W h kg −1 at corresponding power density (P d ) of value around two thousand watt per kilogram. The analysed result reveals that the prepared CCT nanocomposite can be considered as potential electrode material for supercapacitor applications.

Effect of Ag Content on the Electrochemical Performance of Ag2Te Nanostructures Synthesized by Hydrothermal Route for Supercapacitor Applications

“…However, the above concern problem has been improved by taking the appropriate concentration of the precursor in the synthesis of metal telluride leading to the change in morphology of the materials . The cycle stability and rate capability may be significantly improved by composite, as has been established in previous research. − It has also been noticed that the electrochemical activity of electroactive materials is strongly determined by their adjustable complex compositions and well-defined morphology . Recently, Manikandan et al developed the CdTe nanorod via the hydrothermal route for supercapacitor application.…”

Sustainable carbon coated ZrO2 electrodes with high capacitance retention for energy storage devices

“…These limitations are solved by the efficient energy storage system. Among various energy storage devices, solid-state energy storage devices [5,6] especially, supercapacitors play a very crucial role [7][8][9]. These devices are emerging as potential energy storage systems due to their special features such as lowcost, advanced stability, rapid charge-discharge rate [10], and high-power density [11].…”

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