Advanced SearchSearch Tips
Effects of the Polarization Resistance on Cyclic Voltammograms for an Electrochemical-Chemical Reaction
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Effects of the Polarization Resistance on Cyclic Voltammograms for an Electrochemical-Chemical Reaction
Chang, Byoung-Yong;
  PDF(new window)
Here I report an electrochemical simulation work that compares voltammetric current and resistance of a complex electrochemical reaction over a potential scan. For this work, the finite element method is employed which are frequently used for voltammetry but rarely for impedance spectroscopy. Specifically, this method is used for simulation of a complex reaction where a heterogeneous faradaic reaction is followed by a homogeneous chemical reaction. By tracing the current and its polarization resistance, I learn that their relationship can be explained in terms of rate constants of charge transfer and chemical change. An unexpected observation is that even though the resistance is increased by the rate of the following chemical reaction, the current can be increased due to the potential shift of the resistance made by the proceeding faradaic reaction. This report envisions a possibility of the FEM-based resistance simulation to be applied to understand a complex electrochemical reaction. Until now, resistance simulations are mostly based on equivalent circuits or complete mathematical equations and have limitations to find proper models. However, this method is based on the first-principles, and is expected to be complementary to the other simulation methods.
impedance spectroscopy;electrochemistry theory;finite element simulation;electrochemical-chemical reaction;
 Cited by
A New Accurate Equation for Estimating the Baseline for the Reversal Peak of a Cyclic Voltammogram, Journal of Electrochemical Science and Technology, 2016, 7, 4, 293  crossref(new windwow)
A.J. Bard and L.R. Faulkner, Electrochemical Methods: Fundamentals and Applications. Wiley, New York (2002).

T.N. Osaka, Hiroki; Mukoyama, Daikichi; Yokoshima, Tokihiko, J. Electrochem. Sci. Technol. 4, 157-162 (2013). crossref(new window)

B.-Y. Chang and S.-M. Park, Annu. Rev. Anal. Chem. 3, 207-229 (2010). crossref(new window)

E. Barsoukov and J.R. Macdonald, Impedance spectroscopy: theory, experiment, and applications. 2ed. Wiley-Interscience, (2005).

R. Jurczakowski and P. Po³czyñski, J. Phys. Chem. C 118, 7980-7988 (2014). crossref(new window)

N. Xu and D.J. Riley, Electrochim. Acta 94, 206-213 (2013). crossref(new window)

B.-Y. Chang and S.-M. Park, Anal. Chem. 78, 1052-1060 (2006). crossref(new window)

B.-Y. Chang, J. Korean Electrochem. Soc. 17, 119-123 (2014). crossref(new window)

B.-Y. Chang and S.-M. Park, J. Phys. Chem. C 116, 18270-18277 (2012). crossref(new window)

J. Song, Z. Hong, A. Koh and W. Shin, J. Electrochem. Sci. Technol. 5, 19-22 (2014). crossref(new window)

M. Rudolph, D.P. Reddy and S.W. Feldberg, Anal. Chem. 66, 589A-600A (1994). crossref(new window)

H. Cho and D.-Y. Yoon, J. Korean Electrochem. Soc. 16, 217-224 (2013). crossref(new window)

A. Lasia, Electrochemical Impedance Spectroscopy and its applications. In Modern Aspects of Electrochemistry, White, R. E.; Conway, B. E.; Bockris, J. O. M., Eds. Plenum Press: New York, 1999; Vol. 32.

J.G. Limon-Petersen, J.T. Han, N.V. Rees, E.J.F. Dickinson, I. Streeter and R.G. Compton, J. Phys. Chem. C 114, 2227-2236 (2010).

D.J. Gavaghan and S.W. Feldberg, J. Electroanal. Chem. 491, 103-110 (2000). crossref(new window)

K.-M. Nam and B.-Y. Chang, J. Electrochem. Soc. 161, H379-H383 (2014). crossref(new window)

D.K. Gosser, Cyclic Voltammetry: Simulation and Analysis of Reaction Mechanisms. Wiley-VCH, New York (1993).

I. Streeter and R.G. Compton, J. Phys. Chem. C 112, 13716-13728 (2008). crossref(new window)

P. Delahay and G. Mamantov, Anal. Chem. 27, 478-483 (1955). crossref(new window)