Comparison of electrolyte effects for poly(3,4-ethylenedioxythiophene) and poly(3-octylthiophene) by electrochemical impedance spectroscopy and polymerization parameters with morphological analyses on coated films

Ateş, Murat; Karazehir, Tolga; Arıcan, Fatih; Eren, Nuri

doi:10.1007/s11998-012-9448-0

Cited by 8 publications

(2 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The electrochemical behavior of P3ATs and their copolymers synthesized in different electrolyte solutions on platinum, it was also investigated in overpotential that showed a strong dependence on doping with a nature to support electrolytes, such as LiClO 4 , Et 4 NBF 4 and TBAPF 6 , relating to transporting the charge inside the mobile polymer, entry and exit of the dopant counter ions, favored by stabilizing the radical cation and dication species in the polymer matrix [3,[20][21][22]. Marchesi et al [23] using CV and EIS techniques to understand the electrochemical degradation processes found, the decrease in the redox capacity of polymers with an increase in the number of voltammetric cycles and with the data from the Nyquist graph obtained by EIS, related to redox capacity variation with mobile ions along the polymer chain.…”

Section: Introductionmentioning

confidence: 99%

Complementary study on the electrical and structural properties of poly(3-alkylthiophene) and its copolymers synthesized on ITO by electrochemical impedance and Raman spectroscopy

Bento

Maia

Cervantes

et al. 2014

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Targeting the use of organic conjugated polymers in organic solar cells, this study looks at the electrochemical properties of poly(3-alkylthiophene) films: poly(3-methylthiophene), poly(3-hexylthiophene), poly(3-octylthiophene) and its copolymers electrochemically synthesized on a tin-doped indium oxide (ITO) substrate. Electrochemical impedance spectroscopy (EIS) was used to monitor the change in the electrochemical behavior of these films on the ITO and the charge transfer resistance (R CT ) values were determined in open circuit potential (OCP) and at different overpotentials. Together with the EIS, the ex situ and in situ Raman spectroscopy was used to characterize the influence of aromatic radical cation and dication species, present in the polymer matrix of homo and copolymers, in the management processes seen in the Nyquist and Bode-phase diagrams for different systems obtained on ITO. The EIS results in OCP showed an decrease in resistance demonstrating increased conductivity with the copolymerization, and through the Bode-phase diagram and the ex situ Raman spectra, these changes were related to the oscillation of the radical cation and dication along the polymer matrix. By studying Nyquist and Bodephase diagrams in the overpotentials, an increase in R CT values in higher potentials was seen that could be related to the bipolaronic process, which after the deconvolution of the in situ Raman spectra, was possible to relate these results to the stabilization of the dication species in the homo and copolymers matrix when subjected to high potential.

show abstract

Section: Introductionmentioning

confidence: 99%

Complementary study on the electrical and structural properties of poly(3-alkylthiophene) and its copolymers synthesized on ITO by electrochemical impedance and Raman spectroscopy

Bento

Maia

Cervantes

et al. 2014

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…Specific capacitance (C sp ) values showing the film capacitance were obtained by a Nyquist plot as shown in Fig. 9a [64] . C sp was calculated from the following formula; C sp ¼ À1= 2 Â p Â f Â Z 00 , where p ¼ 3.14, f is frequency in Hz and Z 00 is the imaginary part of the impedance [65] .…”

Section: Electrochemical Impedance Spectroscopic Analysismentioning

confidence: 99%

Poly(3-Octylthiophene) and Poly(3-Octylthiophene)/TiO₂-Coated on Al1050: Electrosynthesis, Characterization and Its Corrosion Protection Ability in NaCl Solution

Ateş¹,

Dolapdere²

2014

Polymer-Plastics Technology and Engineering

Self Cite

View full text Add to dashboard Cite

In this study, 3-octylthiophene (3OT) and its nanocomposites with TiO 2 (3OT/TiO 2 ) were electrochemically synthesized in different initial monomer concentrations (50, 75, 100, and 150 mM) in 0.1 M tetraethylammonium tetrafluoroborate (TEABF 4 )/acetonitrile (CH 3 CN) on a glassy carbon electrode (GCE). The best modified electrodes, which were taken from the optimum conditions of redox behaviors, were also electropolymerized in 0.5 M oxalic acid/acetonitrile (CH 3 CN) solution on Al1050 electrode. The modified Al1050 electrodes were characterized by optical microscope, FTIR-ATR, SEM-EDX, and EIS. The optimum conditions of the electrocoated P(3OT)/Al1050 and P(3OT)/TiO 2 nanocomposites on Al1050 electrode were investigated for corrosion performances against 3.5% NaCl solution. The corrosion tests were performed by EIS and Tafel extrapolation plots together with the equivalent circuit model of R s (Q c (R c (Q p R ct ))). P(3OT)/TiO 2 nanocomposite films showed higher protection efficiency (PE ¼ 89%) than P(3OT) films (PE ¼ 81%). The P(3OT)/TiO 2 nanocomposite films coated on Al1050 electrodes may be used in industrial applications of corrosion protection against salt water.

show abstract

Poly(3-octylthiophene) as solid contact for ion-selective electrodes: contradictions and possibilities

Jarvis

Guzinski

Pendley

et al. 2016

J Solid State Electrochem

View full text Add to dashboard Cite

Comparison of electrolyte effects for poly(3,4-ethylenedioxythiophene) and poly(3-octylthiophene) by electrochemical impedance spectroscopy and polymerization parameters with morphological analyses on coated films

Cited by 8 publications

References 64 publications

Complementary study on the electrical and structural properties of poly(3-alkylthiophene) and its copolymers synthesized on ITO by electrochemical impedance and Raman spectroscopy

Complementary study on the electrical and structural properties of poly(3-alkylthiophene) and its copolymers synthesized on ITO by electrochemical impedance and Raman spectroscopy

Poly(3-Octylthiophene) and Poly(3-Octylthiophene)/TiO₂-Coated on Al1050: Electrosynthesis, Characterization and Its Corrosion Protection Ability in NaCl Solution

Poly(3-octylthiophene) as solid contact for ion-selective electrodes: contradictions and possibilities

Contact Info

Product

Resources

About

Comparison of electrolyte effects for poly(3,4-ethylenedioxythiophene) and poly(3-octylthiophene) by electrochemical impedance spectroscopy and polymerization parameters with morphological analyses on coated films

Cited by 8 publications

References 64 publications

Complementary study on the electrical and structural properties of poly(3-alkylthiophene) and its copolymers synthesized on ITO by electrochemical impedance and Raman spectroscopy

Complementary study on the electrical and structural properties of poly(3-alkylthiophene) and its copolymers synthesized on ITO by electrochemical impedance and Raman spectroscopy

Poly(3-Octylthiophene) and Poly(3-Octylthiophene)/TiO2-Coated on Al1050: Electrosynthesis, Characterization and Its Corrosion Protection Ability in NaCl Solution

Poly(3-octylthiophene) as solid contact for ion-selective electrodes: contradictions and possibilities

Contact Info

Product

Resources

About

Poly(3-Octylthiophene) and Poly(3-Octylthiophene)/TiO₂-Coated on Al1050: Electrosynthesis, Characterization and Its Corrosion Protection Ability in NaCl Solution