Preparation and Characterization of Carbon Nanotubes for Supercapacitor Applications
نویسندگان
چکیده
Recent advancements in nanotechnology have proposed the Carbon nanotubes as electrode material for the Supercapacitor applications due to their unique properties. Synthesis of Carbon nanotube in Catalytic Chemical vapor deposition (CCVD) is the easiest and economic way of production in a larger scale. The synthesized MWCNTs were characterized by X – ray diffraction (XRD). The morphological characterizations were carried out by the Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) and also the structure of MWCNTs were analysised using Raman spectroscopy. The Electrochemical performance of MWCNTs was carried out with Modified Glassy Carbon (GC) Electrodes (MWCNTs – GCE). A cyclic voltammograms obtained for bare GCE and MWCNTs – MGCE in 0.1M KCl containing [Fe (CN) 6] (1 mM) and specific capacitance was measured. The electrochemical impedance spectroscopy (EIS) showed that the resistance (Rct) value of the system was 16Ω for MWCNTs–GCE. The highest value 168 F g of specific capacitance was measured at 500 mV/s scan rate. KeywordsMWCNT, CVD, Supercapacitor, CV, Impedance spectroscopy, Specific Capacitance
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