Synthesis of 2‐(9<i>H</i>‐carbazole‐9‐yl)ethyl methacrylate: Electrochemical impedance spectroscopic study of poly(2‐(9<i>H</i>‐carbazole‐9‐yl)ethyl methacrylate) on carbon fiber

Methyl 4-((9H-(carbazole-9-carbanothioylthio) benzoate (MCzCTB) was chemically synthesized and characterized by FTIR, 1 H NMR, and 13 C NMR. A novel synthesized monomer was electropolymerized on a glassy carbon electrode (GCE) in various initial molar concentrations of [MCzCTB] 0 = 1, 3, 5, and 10 mM in 0.1 M NaClO 4 /CH 3 CN and 1 M H 2 SO 4 . P(MCzCTB)/GCE was characterized by cyclic voltammetry, Fourier transform infrared-attenuated transmittance reflectance, scanning electron microscopy-energy dispersive X-ray, and electrochemical impedance spectroscopy. The capacitive behavior of the modified electrode was obtained by Nyquist, Bode-magnitude, and Bode-phase plots. The highest capacitance at low frequency was obtained as ∼ 53.1 mF cm −2 from Nyquist plot and 19.454 Fg −1at a scan rate of 10 mV s −1 for [MCzCTB] 0 = 1.0 mM. CS 2 and OCH 3 groups are electron-withdrawing and electrondonating groups in the monomer structure. These groups affect the polymerization and capacitive behavior of the polymer. The polymer may be used for supercapacitor and biosensor applications in the future.

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“…18 This novel polymer has a higher low frequency capacitance value (C LF =∼53.1 mF cm −2 ) than those previously obtained.…”

Section: Introductionmentioning

confidence: 61%

Synthesis of methyl 4-(9H-carbazole-9-carbanothioylthio) benzoate: electropolymerization and impedimetric study

Ateş

Uludag²,

Arıcan³

et al. 2015

Turk J Chem

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“…38 However, P(VBzCzCT- co -EDOT) is 81.25 times higher than P(9-(4-vinylbenzyl)-9 H -carbazole). In our previous studies, it is shown that the C sp values of P(VBzCzCT) and P(VBzCzCT- co -EDOT) were higher than the corresponding values in P(9-benzyl-9 H -carbazole) 39 ( C sp = 0.22 mF cm −2 ), P(2-(9 H -carbazole-9-yl) ethylmethacylate 40 ( C sp = 0.42 mF cm −2 ) and P(3,5-dithiophene-2-yl-dithieno [3,2-b:2′,3′-d] thiophene 41 ( C sp = 0.89 mF cm −2 ). However, the C sp value of P(VBzCzCT- co -EDOT)/GCE is nearly the same for P(9-tosyl-9 H -carbazole) ( C sp = 50 mF cm −2 ).…”

Section: Resultsmentioning

confidence: 85%

Copolymer formation of 4-vinylbenzyl-9H-carbazole-9-carbodithioate and ethylenedioxythiophene and capacitive behavior

Ateş

Uludag

Arıcan

2014

High Performance Polymers

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In this study, first, a new monomer of 4-vinylbenzyl 9H-carbazole-9-carbodithioate (VBzCzCT) was chemically synthesized and characterized using Fourier transform infrared (FTIR) reflectance, proton nuclear magnetic resonance (1H NMR), and carbon nuclear magnetic resonance (13C NMR) spectroscopies. Second, VBzCzCT and 3,4-ethylenedioxythiophene (EDOT) monomers were electrocopolymerized (VBzCzCT-co-EDOT) in 0.1 M sodium perchlorate (NaClO4)/acetonitrile (CH3CN) on glassy carbon electrode (GCE) using cyclic voltammetry (CV). Third, the best deposition conditions on the electroactivity of the modified homopolymers and copolymer were studied and characterized using different techniques such as CV, FTIR-attenuated total reflectance, scanning electron microscopy–energy dispersion x-ray analysis, and electrochemical impedance spectroscopy (EIS) analysis. The specific capacitance (C sp) of poly(VBzCzCT) (P(VBzCzCT)) was obtained as 20.5 mF cm−2. However, the C sp of P(VBzCzCT-co-EDOT)/GCE was obtained as 45.5 mF cm−2. There is an important improvement in the capacitance value of copolymer formation. The C sp value increases more than twice from P(VBzCzCT) to copolymer. The highest double layer capacitance (C dl = approximately 27.5 mF cm−2) was obtained for P(VBzCzCT-co-EDOT) and P(EDOT) compared with P(VBzCzCT) (C dl = approximately 8.28 mF cm−2. Finally, simulation graphs of Nyquist, Bode-magnitude, and Bode-phase plots were given for homopolymers and copolymer for the electrical equivalent circuit model of R s(Q 1(R 1(C 1(R 2(C 2(R 3 · W))))))(C 3 R 4). The EIS results of P(VBzCzCT), P(EDOT), and P(VBzCzCT-co-EDOT) might be studied as promising active electrode materials for (super)capacitor evaluations.

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“…2-(9H-carbazole-9-yl) ethyl methacrylate was synthesized in our previous study [12] . Acetonitrile was purchased from Merck.…”

Section: Experimental Materialsmentioning

confidence: 99%

Circuit Model Evaluation of Poly(methyl pyrrole-co-2-(9H-carbazole-9-yl)ethyl methacrylate) on Carbon Fiber

Ateş

Uludag

2012

Polymer-Plastics Technology and Engineering

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Methyl pyrrole (N-MPy) and 2-(9H-carbazole-9-yl) ethyl methacrylate (CzEMA) monomers were electrocopolymerized on carbon fiber microelectrode (CFME) as an active electrode material. The electropolymerization of monomers was studied in 0.1 M sodium perchlorate (NaClO 4 )/acetonitrile (ACN) solution. The detailed characterization of the resulting electrocoated poly(N-MPy-co-CzEMA)/ CFME thin films was studied by various techniques, i.e., cyclic voltammetry (CV), Scanning electron microscopy -Energy Dispersive X-ray analysis (SEM-EDX), and Electrochemical impedance spectroscopy (EIS). The effects of monomer mole fractions (mole fraction, X CzEMA ¼ n CzEMA /n MPy þ n CzEMA ) (0.5, 0.66, 0.75, 0.83 and 0.91) during the preparation of modified electrodes were examined by EIS. Capacitive behaviors of modified CFMEs were defined via Nyquist, Bode-magnitude, Bode-phase and Capacitance plots. Circuit model of R(Q(R(C(R(C(RW))))))(CR) was suggested to fit the theoretical and experimental values. The lowest low frequency capacitance value and total charge (Q ¼ 112.9 mC) during electrodeposition of polymer thin film by CV method in the mole fraction of X CzEMA ¼ 0.75 (C LF ¼ $27.2 mF cm À2 ). However, the highest double layer capacitance of polymer/electrolyte system (C 1 ¼ 25.4 mF cm À2 ; C 2 ¼ 159.1 mF cm À2 ; C 3 ¼ 4.54 mF cm À2 ) was obtained in the same mole fraction.

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Synthesis of 2‐(9H‐carbazole‐9‐yl)ethyl methacrylate: Electrochemical impedance spectroscopic study of poly(2‐(9H‐carbazole‐9‐yl)ethyl methacrylate) on carbon fiber

Cited by 12 publications

References 64 publications

Synthesis of methyl 4-(9H-carbazole-9-carbanothioylthio) benzoate: electropolymerization and impedimetric study

Synthesis of methyl 4-(9H-carbazole-9-carbanothioylthio) benzoate: electropolymerization and impedimetric study

Copolymer formation of 4-vinylbenzyl-9H-carbazole-9-carbodithioate and ethylenedioxythiophene and capacitive behavior

Circuit Model Evaluation of Poly(methyl pyrrole-co-2-(9H-carbazole-9-yl)ethyl methacrylate) on Carbon Fiber

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