Redox mediation at poly(o-aminophenol) coated electrodes: mechanistic diagnosis from steady state polarization curves

  • Gabriel Ybarra Instituto Nacional de Tecnología Industrial, Av. Gral. Paz 5445, CC 157, WAB1650B San Martín
  • Carlos Moina Instituto Nacional de Tecnología Industrial, Av. Gral. Paz 5445, CC 157, WAB1650B San Martín
  • María Inés Florit Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La
  • Dionisio Posadas Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata
Keywords: Current rectification, diagnostic diagrams, electroactive polymers, redox polymers

Abstract

In this work, the mediated reduction of Fe(CN)63- and Fe3+ in poly(o-aminophenol) coated electrodes is analyzed by means of a diagnosis diagram based on the features of the steady state current-potential curves. This analysis allows to identify the current determining process and to reproduce the experimental characteristics of the polarization curve from the relevant kinetic and thermodynamic parameters with a minimum amount of experimental measurements.

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References

G. O. Ybarra, C. Moina, M. I. Florit, D. Posadas, Journal of Electroanalytical Chemistry 609 (2007) 129-139.

G. Ybarra, C. Moina, M. I. Florit, D. Posadas, Electrochimica Acta 53 (2008) 3955-3959.

G. Ybarra, C. Moina, M. I. Florit, D. Posadas, Electrochimica Acta 53 (2008) 4727-4731.

C.P. Andrieux, J.-M. Savéant. Molecular Design of Electrode Surfaces, pp. 207 273, Ed. R.W. Murray, Wiley, New York, 1992.

M. E. G. Lyons. Molecular Design of Electrode Surfaces, pp. 277 371, Ed. R.W. Murray, Wiley, New York, 1992.

G. Ybarra, C. Moina, E. M. Andrade, F. V. Molina, M. I. Florit, D. Posadas, Electrochimica Acta 50 (2005) 1505-1513.

L. Yang, X. Huang, A. Gogoll, M. Strømme, M. Sjödin, Electrochimica Acta 204 (2016) 270-275.

S.-W. Lee, J. Lopez, R.F. Saraf, Electroanalysis 25 (2013) 1557–1566.

R. Francke, R. D. Little. Chemical Society Reviews 43 (2014) 2492-2521.

H. Tokue, K. Oyaizu, T. Sukegawa, H. Nishide. ACS Applied Materials and Interfaces 6 (2014) 4043-4049.

K. Oyaizu, H. Tatsuhira, H. Nishide, Polymer Journal 47 (2015) 212–219.

H. Tokue, K. Kakitani, H. Nishide, K. Oyaizu, RSC Advances 6 (2016) 99195-99201.

R. D. Milton, T. Wang, K.L. Knoche, S.D. Minteer, Langmuir 32 (2016) 2291-2301.

H. M. Bambhania, D. Chakraborty, H. Wen, S. Calabrese Barton, Journal of the Electrochemical Society 164 (2017) H232-H240.

H. Tokue, K. Kakitani, H. Nishide, K. Oyaizu, Chemistry Letters 46 (2017) 647-650.

E. Laviron, Journal of Electroanalyticla Chemistry 112 (1980) 1 9.

T. Ikeda, C. R. Leidner, R.W. Murray, Journal of Electroanalytical Chemistry 138 (1982) 343.

C. Barbero, L. Sereno, J. O. Zerbino, D. Posadas, Electrochimica Acta 32 (1987) 693.

W. J. Albery, A.R. Hillman, Journal of Electroanalytical Chemistry 170 (1984) 27.

Published
16-08-2018
Section
Electrochemical Science