Ateş, MuratKarazehir, TolgaArican, FatihEren, Nuri2022-05-112022-05-1120131547-00911935-3804https://doi.org/10.1007/s11998-012-9448-0https://hdl.handle.net/20.500.11776/71463,4-Ethylenedioxythiophene and 3-octylthiophene were electropolymerized on glassy carbon electrodes (GCE) to compare with four different electrolytes [lithium perchlorate (LiClO4), sodium perchlorate, tetraethylammonium tetrafluoroborate, and tetrabutylammonium tetrafluoroborate] in a solvent of acetonitrile (CH3CN). Modified electrodes were characterized by cyclic voltammetry, attenuated total reflectance-Fourier transform IR spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis, atomic force microscopy, and electrochemical impedance spectroscopy (EIS). Nyquist and Bode plots for magnitude, phase, admittance, and capacitance on both polymer-modified electrodes were comparatively investigated in detail. The highest low-frequency capacitance (C (LF)) and double-layer capacitance (C (dl)) were obtained in 0.1 M LiClO4/CH3CN for poly(3,4-ethylenedioxythiophene) and poly(octylthiophene)/GCE. EIS data were fitted to the equivalent circuit model of R(Q(R(C(R(C(RW))))))(CR), which is used to investigate circuit parameters.en10.1007/s11998-012-9448-0info:eu-repo/semantics/closedAccessPoly(3,4-ethylenedioxythiophene)Poly(3-octylthiophene)Electrochemical impedance spectroscopyElectrolyteMorphologyAtomic force microscopyConducting PolymersCarbon-FiberThiopheneElectropolymerizationBehaviorPolycarbazoleDerivativesPedot/PssPlatinumSolventArticle103317330Q3WOS:0003185552000032-s2.0-84877702334Q2