Electrolyte type and concentration effects on poly(3-(2- aminoethyl thiophene) electro-coated on glassy carbon electrode via impedimetric study

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

doi:10.1007/s13726-012-0117-z

Cited by 13 publications

(9 citation statements)

References 56 publications

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“…All the impedance spectra were measured at the corresponding open circuit potential to ensure steady supply for 30 min. The low frequency capacitance values (C LF ) from the Nyquist plot were obtained from the slope of a plot of the imaginary component (Z ) of the impedance at low frequencies vs. inverse of the reciprocal frequency (f), where f = 0.01 Hz using the expression C LF = −1/2 × f × Z [17,18]. C LF values were obtained for PCz, PCz/nanoclay and PCz/Zn-nanoparticle films from the same Nyquist plots (Fig.…”

Section: Corrosion Protection Abilities Of Coated Electrodesmentioning

confidence: 99%

The application of polycarbazole, polycarbazole/nanoclay and polycarbazole/Zn-nanoparticles as a corrosion inhibition for SS304 in saltwater

Ateş

Özyılmaz

2015

Progress in Organic Coatings

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Section: Corrosion Protection Abilities Of Coated Electrodesmentioning

confidence: 99%

The application of polycarbazole, polycarbazole/nanoclay and polycarbazole/Zn-nanoparticles as a corrosion inhibition for SS304 in saltwater

Ateş

Özyılmaz

2015

Progress in Organic Coatings

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“…Ionic transport in polymer electrolyte is, however, not completely understood and remains an obstacle to achieving the required ambient conductivity [12]. Electrochemical impedance spectroscopy (EIS) has been used as a powerful technique to study the electrical properties of materials such as double-layer capacitance, diffusion layer, and charge transfer resistance [13]. Dielectric relaxation and ion conduction mechanism in solids are the most intensively researched topics in condensed matter physics [14].…”

Section: Introductionmentioning

confidence: 99%

Li+ ion conduction mechanism in poly (ε-caprolactone)-based polymer electrolyte

Aziz

2013

Iran Polym J

150

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In this work, solid polymer electrolytes based on poly(e-caprolactone) (PCL) with lithium bis(oxalato)borate as a doping salt were prepared by solution cast technique using DMF as a solvent. The electrical DC conductivity and dielectric constant of the solid polymer electrolyte samples were investigated by electrochemical impedance spectroscopy over a frequency range from 50 Hz to 1 MHz. It was found that the DC conductivity increased with increase in the salt concentration to up to 4 wt% and thereafter decreased. Dielectric constant versus salt concentration was used to interpret the decrease in DC conductivity with increase in salt concentration. The DC conductivity as a function of temperature follows Arrhenius behavior in low temperature region, which reveals that ion conduction occurs through successful hopping. The curvature of DC conductivity at high temperatures indicates the contribution of segmental motion to ion conduction. High values for dielectric constant and dielectric loss were observed at low frequencies. The plateau of dielectric constant and dielectric loss at high frequencies can be observed as a result of rapid oscillation of the AC electric field. The HN dielectric function was utilized to study the dielectric relaxation. The experimental and theoretical data of dielectric constant are very close to each other at low temperatures. At high temperatures, the simulated data are more deviated from the experimental curve of dielectric constant due to the dominance of electrode polarization. The non-unity of relaxation parameters (a and b) reveals that the relaxation processes in PCL-based solid electrolyte is a non-Debye type of relaxation.

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“…It means that C sp was increased ∼10 times in area and charge formulas compared to P(Th 4 DTT). Generally, combination of P(Th 4 DTT)/MWCNT is based on electrochemical interaction onto the surface of CNTs by covalent bonding …”

Section: Resultsmentioning

confidence: 99%

Poly(2,6‐di(thiophene‐2‐yl)‐3,5bis(4‐(thiophene‐2‐yl)phenyl)dithieno [3,2‐b;2',3'‐d]thiophene)/carbon nanotube composite for capacitor applications

Ateş

Eren

Osken

et al. 2013

J of Applied Polymer Sci

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A novel monomer, 2,6-di(thiophene-2-yl)-3,5bis(4-(thiophene-2-yl)phenyl)dithieno [3,2-b;2',3'-d]thiophene (Th 4 DTT) has been synthesized and used as an electro-active material. It has been electropolymerized onto glassy carbon (GC) electrode in sodium dodecyl sulfate (SDS) solution (0.1 M) together with multi-walled carbon nanotubes (MWCNT). A good capacitive characteristics for P(Th 4 DTT)/MWCNT composite has been obtained by electrochemical impedance spectroscopy (EIS), which is, to our best knowledge, the first report on capacitor behavior of a dithienothiophene. A synergistic effect has been resolved by Nyquist, Bodemagnitude-phase and admittance plots. Specific capacitance of the conducting polymer/MWCNT, calculated from cyclic voltammogram (CV) together with area and charge formulas, has been found to be 20.17 F g 21 . Long-term stability of the capacitor has also been tested by CV, and the results indicated that, after 500 cycles, the specific capacitance is 87.37% of the initial capacitance. An equivalent circuit model of R s (C 1 (R 1 (Q(R 2 W))))(C 2 R 3 ) has been obtained to fit the experimental and theoretical data. The double layer capacitance (C dl ) value of P(Th 4 DTT)/MWCNT (4.43 mF cm 22 ) has been found to be 25 times higher than P(Th 4 DTT) (C dl 5 0.18 mF cm 22 ).

show abstract

Electrolyte type and concentration effects on poly(3-(2- aminoethyl thiophene) electro-coated on glassy carbon electrode via impedimetric study

Cited by 13 publications

References 56 publications

The application of polycarbazole, polycarbazole/nanoclay and polycarbazole/Zn-nanoparticles as a corrosion inhibition for SS304 in saltwater

The application of polycarbazole, polycarbazole/nanoclay and polycarbazole/Zn-nanoparticles as a corrosion inhibition for SS304 in saltwater

Li+ ion conduction mechanism in poly (ε-caprolactone)-based polymer electrolyte

Poly(2,6‐di(thiophene‐2‐yl)‐3,5bis(4‐(thiophene‐2‐yl)phenyl)dithieno [3,2‐b;2',3'‐d]thiophene)/carbon nanotube composite for capacitor applications

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