Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Revised Reversible and Totally Irreversible Zones for the Linear Sweep Voltammetry at a Planar Electrode

  • Kwak Juhyoun (Department of Chemistry, Korea Advanced Institute of Science and Technology)
  • Published : 1994.01.20
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Abstract

Digital simulation program for one-dimensional geometric systems of electrochemical phenomena was developed. The accuracy of the digital simulation is discussed by comparing with the known solutions. Applying this program to the linear sweep voltammetry at a planar electrode for the electrode reaction, 0 + ne${\to}$R, the accurate current functions for the reversible and totally irreversible charge transfer systems were obtained. Comparing these current functions with the simulated voltammograms for various other values of ${\alpha}$ (0.1 to 1.0) and ${\Lambda}\;(10^{-5}\;to\;10^5)$, the revised zones that are different from those proposed by Matsuda and Ayabe for the reversible and totally irreversible systems are proposed. For ${\alpha}{\ge}$0.1 the reversible zone is in ${\Lambda}{\ge}10^{1.7}$ and the totally irreversible zone is in ${\Lambda}{\le}10^{-1.7}$, where ${\Lambda}=k^{\circ}/ [D_o^{1-{\alpha}}D_R^{\alpha}(nF/RT)v]^{1/2}$.

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References

  1. Electroanalytical Chemistry v.3 Feldberg, S. W.;Bard A. J.(ed.)
  2. Electrochemical Methods: Fundamentals and Applications Bard, A. J.;Faulkner, L. R.
  3. Electroanalytical Chemistry v.15 Wightman, R. M.;Wipf, D. O.;Bard, A. J.(ed.)
  4. J. Electroanal. Chem. v.49 Joslin, T.;Pletcher, D.
  5. J. Electroanal. Chem. v.127 Feldberg, S. W.
  6. The Finite Element Method for Engineers Huebner, K.;Thornton, E. A.
  7. Anal. Chem. v.36 Nicholson, R. S.;Shain, I.
  8. J. Electroanal. Chem. v.324 Suzuki, T.;Mori, I.;Nagamoto, H.;Ito, M. M.;Inoue, H.
  9. Elektrochem. v.59 Matsuda, H.;Ayabe, Y. Z.
  10. Physical Chemistry Atkins, P. W.
  11. Electrochemistry: Calculatiaon, Simulation, and Instrumentation v.2 Computers in Chemistry and Instrumentation Feldberg, S. W.;Mattson, J. S.(ed.);Mark, Jr., H. B.(ed.);MacDonald, Jr., H. C.(ed.)
  12. Numerical Recipes in C: The Art of Scientific Computing Press, W. H.;Flannery, B. P.;Teukolsky, S. A.;Vetterling, W. T.
  13. The Feynman Lectures on Physics v.II Feynman, R. P.;Reighton, R. B.;Sands, M.