Integral equation-based simulation of transient electroanalytical experiments at spherical electrodes, for the catalytic EC’mechanism with DO≠DR
Authors:
- L. K. Bieniasz
Abstract
Identification of all possible kernel functions associated with integral equation-based simulations of transient experiments for (pseudo-)first order homogeneous reaction-diffusion systems is an unsolved problem. Convolution concentration-flux relationships are derived for the catalytic EC’ reaction mechanism at spherical electrodes, assuming unequal diffusion coefficients of the members of the redox couple (DO≠DR). The relationships involve new kernel terms, thus far unknown to be of importance to the theory of electroanalytical experiments. The new kernels are incorporated into the adaptive Huber method for solving integral equations that describe the experiments. The resulting algorithm is used to simulate chronoamperometry and cyclic voltammetry. It is found that the effect of DO≠DR can be considerable. Integral equations obtained for DO≠DR appear more difficult to solve numerically than the integral equation arising for DO = DR.
- Record ID
- CUT0fe775a8cff44483950563256bf90cc4
- Publication categories
- ;
- Author
- Journal series
- Electrochimica Acta, ISSN 0013-4686, e-ISSN 1873-3859
- Issue year
- 2019
- Vol
- 317
- Pages
- 795-807
- Other elements of collation
- wykr.; Bibliografia (na s.) - 806-807; Bibliografia (liczba pozycji) - 39; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 317
- Keywords in English
- spherical electrode, catalytic mechanism, chronoamperometry, cyclic voltammetry, computational electrochemistry
- DOI
- DOI:10.1016/j.electacta.2019.05.164 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0013468619311247 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT0fe775a8cff44483950563256bf90cc4/
- URN
urn:pkr-prod:CUT0fe775a8cff44483950563256bf90cc4
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