Abstract
Theoretical equations are developed for the second and higher harmonic responses of reversible and quasireversible redox reactions to an applied sinusoidal waveform as a function of frequency. Finite layer diffusion is taken into account in the theoretical development in order to describe the low-frequency response appropriately. The description is considerably simplified by the definition of a harmonic impedance function. Experimental results are presented for the redox systems ferrocene/ferricinium ion in tetraethylammonium perchlorate and ferrocyanide/ferricyanide in aqueous potassium chloride and are compared quantitatively with the theoretical results.
| Original language | English |
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| Pages (from-to) | 2134-2142 |
| Number of pages | 9 |
| Journal | Journal of Physical Chemistry |
| Volume | 99 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jan 1995 |