Abstract
Multi-scan cyclic voltammetry may lead eventually to a repetitive current-versus-potential graph. Here such “ultimate” cyclic voltammograms are investigated mathematically for reversible electrode reactions. The voltammetric shapes, after an infinite number of cycles, are modelled and their characteristics are documented. It is predicted that the approach to truly repetitive behaviour, within an experimentally realistic length of time, requires that a specific condition—balancing the potential scan range to the initial concentrations—be satisfied.
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Notes
If, for example, \( t=-{\scriptscriptstyle \frac{25}{16}}P,\mathrm{then}\operatorname{Int}\left\{-2t/P\right\}=3\operatorname{and}\mathrm{frac}\left\{-2t/P\right\}={\scriptscriptstyle \frac{1}{8}}. \)
In contradistinction, the lower limit in the companion article [1] is zero.
In a Fourier representation, antisymmetry corresponds to all the coefficients of even harmonic number h equalling zero; that is: a 2 = b 2 = a 4 = b 4 = a 6 = ⋯ = 0.
except, perhaps, for some “this layer” configurations.
also known misleadingly as a “stationary” state
References
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Acknowledgments
This study was initially supported by the Natural Sciences and Engineering Council of Canada.
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Oldham, K.B. Ultimate cyclic voltammetry: an analytical examination of the reversible case. J Solid State Electrochem 17, 2749–2756 (2013). https://doi.org/10.1007/s10008-013-2176-2
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DOI: https://doi.org/10.1007/s10008-013-2176-2