Synthesis, characterization and supercapacitator applications of CB/MnO2/PPy AND rGO/MnO2/PTTh nanocomposites

Nanocomposites (CB, CB/MnO2, MnO2/PPy, CB/PPy, CB/MnO2/PPy, rGO/MnO2, MnO2/PTTh, rGO/PTTh, rGO/MnO2/PTTh) were successfully synthesized in order to produce solutions to the energy problems in the world and give a new perspective. These synthesized nanocomposites were characterized using various characterization methods, such as BET surface analysis, SEM-EDX, Raman, TEM, XRD, FTIR, TGA-DTA and UV-Vis spectrophotometry. Nanocomposites were subjected to CV, Cycle stability, EIS and GCD tests to obtain information about their electrochemical performance (energy density, specific capacitance value, power density and % cycle stability). Electrochemical performance tests were performed using 1 M H2SO4 electrolyte solution. The most suitable circuits for nanocomposites were determined by using EIS data and ZSimpWin simulation circuit program. R(CR) circuit model was determined for CB/MnO2/PPy nanocomposites, while LR(QR) circuit model for rGO/MnO2/PTTh nanocomposites was determined as the most suitable circuit model. Thus, it was provided to develop both cheap and environmental stable supercapacitor devices by using carbon black, polyterthiophene having high environmental stability. Key words: Carbon black, MnO2, reduced graphene oxide, polyterthiophene, polypyrrole