Application of operando ORP-EIS for the in-situ monitoring of acid anion incorporation during anodizing

Meisam Dabiri Havigh; Kristof Marcoen; Benny Wouters; Noël Hallemans; Martin Bojinov; Tom Hauffman; John Lataire; Herman Terryn; Annick Hubin

doi:10.1016/j.electacta.2024.144395

Application of operando ORP-EIS for the in-situ monitoring of acid anion incorporation during anodizing

Meisam Dabiri Havigh, Kristof Marcoen, Benny Wouters, Noël Hallemans, Martin Bojinov, Tom Hauffman, John Lataire, Herman Terryn, Annick Hubin

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Abstract

Operando odd random phase electrochemical impedance spectroscopy (ORP-EIS) is applied to monitor the anodizing process of AA2024 in acidic media. The impedance data reveals the presence of inductive behavior during the process. We correlate this inductive behavior to the acid anion incorporation during anodizing using the surface charge approach. Moreover, the impact of anodizing parameters – including anodizing DC potential, electrolyte type and concentration – is studied on the inductive behavior, and consequently on the acid anion adsorption and incorporation. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is employed to support the operando ORP-EIS results. We conclude that operando ORP-EIS during anodizing can predict acid anion incorporation into the oxide layer.

Original language	English
Article number	144395
Number of pages	9
Journal	Electrochimica Acta
Volume	493
DOIs	https://doi.org/10.1016/j.electacta.2024.144395
Publication status	Published - 20 Jul 2024

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Publisher Copyright:
© 2024 Elsevier Ltd

Keywords

Acid anion incorporation
Anodizing
Inductive behavior
Operando ORP-EIS
Surface charge approach

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10.1016/j.electacta.2024.144395

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title = "Application of operando ORP-EIS for the in-situ monitoring of acid anion incorporation during anodizing",

abstract = "Operando odd random phase electrochemical impedance spectroscopy (ORP-EIS) is applied to monitor the anodizing process of AA2024 in acidic media. The impedance data reveals the presence of inductive behavior during the process. We correlate this inductive behavior to the acid anion incorporation during anodizing using the surface charge approach. Moreover, the impact of anodizing parameters – including anodizing DC potential, electrolyte type and concentration – is studied on the inductive behavior, and consequently on the acid anion adsorption and incorporation. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is employed to support the operando ORP-EIS results. We conclude that operando ORP-EIS during anodizing can predict acid anion incorporation into the oxide layer.",

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T1 - Application of operando ORP-EIS for the in-situ monitoring of acid anion incorporation during anodizing

AU - Dabiri Havigh, Meisam

AU - Marcoen, Kristof

AU - Wouters, Benny

AU - Hallemans, Noël

AU - Bojinov, Martin

AU - Hauffman, Tom

AU - Lataire, John

AU - Terryn, Herman

AU - Hubin, Annick

PY - 2024/7/20

Y1 - 2024/7/20

N2 - Operando odd random phase electrochemical impedance spectroscopy (ORP-EIS) is applied to monitor the anodizing process of AA2024 in acidic media. The impedance data reveals the presence of inductive behavior during the process. We correlate this inductive behavior to the acid anion incorporation during anodizing using the surface charge approach. Moreover, the impact of anodizing parameters – including anodizing DC potential, electrolyte type and concentration – is studied on the inductive behavior, and consequently on the acid anion adsorption and incorporation. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is employed to support the operando ORP-EIS results. We conclude that operando ORP-EIS during anodizing can predict acid anion incorporation into the oxide layer.

AB - Operando odd random phase electrochemical impedance spectroscopy (ORP-EIS) is applied to monitor the anodizing process of AA2024 in acidic media. The impedance data reveals the presence of inductive behavior during the process. We correlate this inductive behavior to the acid anion incorporation during anodizing using the surface charge approach. Moreover, the impact of anodizing parameters – including anodizing DC potential, electrolyte type and concentration – is studied on the inductive behavior, and consequently on the acid anion adsorption and incorporation. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is employed to support the operando ORP-EIS results. We conclude that operando ORP-EIS during anodizing can predict acid anion incorporation into the oxide layer.

KW - Acid anion incorporation

KW - Anodizing

KW - Inductive behavior

KW - Operando ORP-EIS

KW - Surface charge approach

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DO - 10.1016/j.electacta.2024.144395

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VL - 493

JO - Electrochimica Acta

JF - Electrochimica Acta

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ER -

Application of operando ORP-EIS for the in-situ monitoring of acid anion incorporation during anodizing

Abstract

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Keywords

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