Novel electrochemical impedance simulation design via stochastic algorithms for fitting equivalent circuits
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- @Article{Abud-Kappel:2016:Measurement,
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author = "Marco Andre {Abud Kappel} and Ricardo Fabbri and
Roberto P. Domingos and Ivan N. Bastos",
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title = "Novel electrochemical impedance simulation design via
stochastic algorithms for fitting equivalent circuits",
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journal = "Measurement",
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year = "2016",
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volume = "94",
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pages = "344--354",
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keywords = "genetic algorithms, genetic programming, Differential
evolution, Electrochemical impedance, Impedance
measurements, Corrosion, Optimization, Stochastic
methods",
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ISSN = "0263-2241",
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URL = "https://www.sciencedirect.com/science/article/pii/S0263224116304699",
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DOI = "doi:10.1016/j.measurement.2016.08.008",
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abstract = "Electrochemical impedance spectroscopy (EIS) is of
great value to corrosion studies because it is
sensitive to transient changes that occur in the
metal-electrolyte interface. A useful way to link the
results of electrochemical impedance spectroscopy to
corrosion phenomena is by simulating equivalent
circuits. Equivalent circuit models are very attractive
because of their relative simplicity, enabling the
monitoring of electrochemical systems that have a
complex physical mechanism. In this paper, the
stochastic algorithm Differential Evolution is proposed
to fit an equivalent circuit to the EIS results for a
wide potential range. EIS is often limited to the
corrosion potential despite being widely used. This
greatly hinders the analysis regarding the effect of
the applied potential, which strongly affects the
interface, as shown, for example, in polarization
curves. Moreover, the data from both the EIS and the DC
values were used in the proposed scheme, allowing the
best fit of the model parameters. The approach was
compared to the standard Simplex square residual
minimization of EIS data. In order to manage the large
amount of generated data, the EIS-Mapper software
package, which also plots the 2D/3D diagrams with
potential, was used to fit the equivalent circuit of
multiple diagrams. Furthermore, EIS-Mapper also
computed all simulations. The results of 67 impedance
diagrams of stainless steel in a 3.5percent NaCl medium
at 25C obtained in steps of 10mV, and the respective
values of the fitted parameters of the equivalent
circuit are reported. The present approach conveys new
insight to the use of electrochemical impedance and
bridges the gap between polarization curves and
equivalent electrical circuits.",
- }
Genetic Programming entries for
Marco Andre Abud Kappel
Ricardo Fabbri
Roberto Pinheiro Domingos
Ivan Napoleao Bastos
Citations