Croatica Chemica Acta, Vol. 90 No. 1, 2017.
Izvorni znanstveni članak
https://doi.org/10.5562/cca3048
Simulation of Square Wave Voltammetry of Three Step Redox Reactions on Spherical Electrodes
Šebojka Komorsky-Lovrić
; Division of Materials Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
Milivoj Lovrić
orcid.org/0000-0002-6421-1398
; Division of Materials Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
Sažetak
The theory of three step electrode reaction is developed for square wave voltammetry on stationary spherical electrodes. It was assumed that all electroactive species are solution soluble. The dependence of the response on the thermodynamic stability of intermediates, on the electrode radius and the scan direction is investigated for the fast and reversible electrode reactions. The criterion of reversibility is postulated. Furthermore, the influence of electrode kinetics on the response was calculated for the cathodic and anodic scan directions. The difference in responses caused by the variation of scan direction is an indication of multiple electron transfers. The method for the estimation of transfer coefficient is demonstrated.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
square wave voltammetry; three step electrode reaction; theory; spherical electrode; kinetics of electrode reaction
Hrčak ID:
182672
URI
Datum izdavanja:
2.1.2017.
Posjeta: 1.474 *