Ateş, MuratÇalışkan, Sinan2022-05-112022-05-1120192574-08812574-089Xhttps://doi.org/10.1080/25740881.2018.1563125https://hdl.handle.net/20.500.11776/7291In this study, graphene oxide (GO) was chemically reacted with sodium borohydride (NaBH4) to form reduced graphene oxide (rGO). rGO, Montmorillonite nanoclay, and polyvinylcarbazole (PVK) were used to form a ternary nanocomposite via chemical reaction. These nanocomposite qualities were described via scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy-attenuated transmission reflectance (FTIR-ATR). In addition, these materials were used in supercapacitor device as an active material to test electrochemical performances via cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). The rGO/nanoclay/PVK nanocomposite shows significantly improved specific capacitance (C-sp = 168.64 Fg(-1)) compared to that of rGO (C-sp = 63.26 Fg(-1)) at the scan rate of 10 mVs(-1) by CV method. The enhanced capacitance results in high power density (P = 5522.6 Wkg(-1)) and energy density (E = 28.84 Whkg(-1)) capabilities of the rGO/nanoclay/PVK nanocomposite material. The addition of nanoclay and PVK increased the specific capacitance of rGO material due to a dopant effect for supercapacitor studies. Ragone plots were drawn to observe energy and power density of supercapacitor devices. The C-sp of rGO/nanoclay/PVK nanocomposite has only 86.4% of initial capacitance for charge/discharge performances obtained by CV method for 5000 cycles. [GRAPHICS] .en10.1080/25740881.2018.1563125info:eu-repo/semantics/closedAccessPolyvinylcarbazolenanoclayreduced graphene oxideenergy storagecharge/dischargeMicrowave-Assisted SynthesisGraphene Oxide NanosheetsElectrode MaterialHydrothermal SynthesisRoom-TemperatureAg NanoparticlesPolyanilineCompositeFabricationPolymerArticle581414811494Q4WOS:0004824342000012-s2.0-85074969768Q2