Distribution function of relaxation times: An alternative to classical methods for evaluating the reaction kinetics of oxygen evolution reaction
Created by W.Langdon from
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- @Article{ATTIAS:2023:cej,
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author = "Rinat Attias and Sourav Bhowmick and Yoed Tsur",
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title = "Distribution function of relaxation times: An
alternative to classical methods for evaluating the
reaction kinetics of oxygen evolution reaction",
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journal = "Chemical Engineering Journal",
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volume = "476",
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pages = "146708",
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year = "2023",
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ISSN = "1385-8947",
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DOI = "doi:10.1016/j.cej.2023.146708",
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URL = "https://www.sciencedirect.com/science/article/pii/S1385894723054396",
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keywords = "genetic algorithms, genetic programming, Tafel slope,
DFRT, DRT, ISGP, EIS, Reaction kinetics",
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abstract = "Reaction kinetics of RuO2 is precisely evaluated by
distribution function of relaxation times (DFRT) model
using impedance spectroscopy analysis by genetic
programming (ISGP). Effective resistances of the
Faradaic processes, measured using Electrochemical
impedance spectroscopy (EIS) at various overpotentials,
were determined using DFRT, by separating and
associating three electrochemical phenomena occurring
during the reaction. The effective resistances are used
to generate a Tafel plot of potential as a function of
log1Reff. The classical method, based on linear sweep
voltammetry (LSV), to evaluate the Tafel slope is
associated with some considerations for accurate
results. For RuO2, a reference catalyst, LSV
illustrates an average Tafel slope of 182 pm 8 mV/dec
while the effective resistance method, estimated using
DFRT, shows an average of 181 pm 3 mV/dec. A relative
error of 0.3 percent between the two methodologies, and
a lower standard deviation for DFRT demonstrate the
higher precision and effectiveness of ISGP in
determining the reaction kinetics via Tafel slope
analysis. Therefore, using DFRT with the ability to
separate Faradaic from non-Faradaic processes to
evaluate the relevant part of the effective resistance,
reaction kinetics can be estimated, avoiding
shortcomings of the classical Tafel method",
- }
Genetic Programming entries for
Rinat Attias
Sourav Bhowmick
Yoed Tsur
Citations