Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control

Processes of nucleation and growth largely determine the structure and properties of thin films obtained by electrodeposition on foreign substrates. Theoretical aspects of the initial stages of electrochemical phase formation under constant and variable overpotentials are considered in this work. Si...

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Autores principales:	Vladimir A. Isaev, Olga V. Grishenkova, Alexander V. Kosov, Olga L. Semerikova, Yuriy Zaikov
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	electrocrystallization kinetics nucleation growth Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/eaef673fda1f46ba97ae984a45753f11
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spelling	oai:doaj.org-article:eaef673fda1f46ba97ae984a45753f112021-11-11T17:53:58ZSimulation of 3D Electrochemical Phase Formation: Mixed Growth Control10.3390/ma142163301996-1944https://doaj.org/article/eaef673fda1f46ba97ae984a45753f112021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6330https://doaj.org/toc/1996-1944Processes of nucleation and growth largely determine the structure and properties of thin films obtained by electrodeposition on foreign substrates. Theoretical aspects of the initial stages of electrochemical phase formation under constant and variable overpotentials are considered in this work. Simulation of multiple nucleation with mixed (charge transfer, and diffusion) controlled growth was performed for three cases (cyclic voltammetry, potentiostatic electrodeposition, and galvanostatic electrodeposition). The influence of the bulk concentration of depositing ions and the exchange current density at the electrolyte/nucleus interface on cyclic voltammograms (CVs), transients of current and overpotential, as well as the number and size of non-interacting new-phase nuclei was analyzed. It is found that, under galvanostatic conditions, the number of nuclei decreases as the concentration of depositing ions increases due to a more rapid decrease in overpotential. The proposed model was applied to determine the diffusion coefficient, exchange current density, and transfer coefficient considering the experimental CV.Vladimir A. IsaevOlga V. GrishenkovaAlexander V. KosovOlga L. SemerikovaYuriy ZaikovMDPI AGarticleelectrocrystallizationkineticsnucleationgrowthTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6330, p 6330 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	electrocrystallization kinetics nucleation growth Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	electrocrystallization kinetics nucleation growth Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Vladimir A. Isaev Olga V. Grishenkova Alexander V. Kosov Olga L. Semerikova Yuriy Zaikov Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control
description	Processes of nucleation and growth largely determine the structure and properties of thin films obtained by electrodeposition on foreign substrates. Theoretical aspects of the initial stages of electrochemical phase formation under constant and variable overpotentials are considered in this work. Simulation of multiple nucleation with mixed (charge transfer, and diffusion) controlled growth was performed for three cases (cyclic voltammetry, potentiostatic electrodeposition, and galvanostatic electrodeposition). The influence of the bulk concentration of depositing ions and the exchange current density at the electrolyte/nucleus interface on cyclic voltammograms (CVs), transients of current and overpotential, as well as the number and size of non-interacting new-phase nuclei was analyzed. It is found that, under galvanostatic conditions, the number of nuclei decreases as the concentration of depositing ions increases due to a more rapid decrease in overpotential. The proposed model was applied to determine the diffusion coefficient, exchange current density, and transfer coefficient considering the experimental CV.
format	article
author	Vladimir A. Isaev Olga V. Grishenkova Alexander V. Kosov Olga L. Semerikova Yuriy Zaikov
author_facet	Vladimir A. Isaev Olga V. Grishenkova Alexander V. Kosov Olga L. Semerikova Yuriy Zaikov
author_sort	Vladimir A. Isaev
title	Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control
title_short	Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control
title_full	Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control
title_fullStr	Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control
title_full_unstemmed	Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control
title_sort	simulation of 3d electrochemical phase formation: mixed growth control
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/eaef673fda1f46ba97ae984a45753f11
work_keys_str_mv	AT vladimiraisaev simulationof3delectrochemicalphaseformationmixedgrowthcontrol AT olgavgrishenkova simulationof3delectrochemicalphaseformationmixedgrowthcontrol AT alexandervkosov simulationof3delectrochemicalphaseformationmixedgrowthcontrol AT olgalsemerikova simulationof3delectrochemicalphaseformationmixedgrowthcontrol AT yuriyzaikov simulationof3delectrochemicalphaseformationmixedgrowthcontrol
_version_	1718432033816969216

Simulation of 3D Electrochemical Phase Formation: Mixed Growth Control

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