A theoretical approach of impedance spectroscopy during the passivation of steel in alkaline media

被引：64

作者：

Sanchez-Moreno, M. ^{[1
,2
]}

Takenouti, H. ^{[2
]}

Garcia-Jareno, J. J. ^{[3
]}

Vicente, F. ^{[3
]}

Alonso, C. ^{[1
]}

机构：

[1] CSIC, Inst Construct Sci Eduardo Torroja, Madrid 28033, Spain

[2] Univ Paris 06, CNRS, UPR 15, Lab Interfaces & Syst Electrochim, F-75252 Paris 05, France

[3] Univ Valencia, Dept Phys Chem, E-46100 Burjassot, Spain

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 28期

关键词：

Impedance spectroscopy; Reaction mechanism; Kinetic parameters; 3D-film; Digital simulation; POINT-DEFECT MODEL; CARBON-STEEL; IRON ELECTRODES; FILM GROWTH; OXIDE-FILM; MECHANISM; REBARS; LAYERS; IDENTIFICATION; METALS;

D O I：

10.1016/j.electacta.2009.07.013

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A theoretical impedance function is deduced for a proposed mechanism of passive film formation of steel in contact with alkaline aqueous media involving two reaction intermediates: mixed oxide with similar stoichiometry to magnetite and Fe(III)-oxides. The reduction reaction of dissolved oxygen is considered as the only cathodic reaction compensating the anodic current induced by the formation of iron oxides at open circuit potential. The iron dissolution takes place through a chemical dissolution of ferric oxide. A two-layered passive film with 3D structure is considered. A satisfactory agreement between the digital simulations on the basis of the theoretical impedance function and experimental spectra validates the proposed model. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：7222 / 7226

页数：5

共 37 条

[1] Galvanic coupling between carbon steel and austenitic stainless steel in alkaline media
Abreu, CM
Cristóbal, MJ
Montemor, MF
Nóvoa, XR
Pena, G
Pérez, MC
[J]. ELECTROCHIMICA ACTA, 2002, 47 (13-14) : 2271 - 2279
[2] A COMPARATIVE ELECTROCHEMICAL AND ELLIPSOMETRIC STUDY OF IRON ELECTRODES IN DIFFERENT ALKALINE ELECTROLYTES
ALBANI, OA
ZERBINO, JO
VILCHE, JR
ARVIA, AJ
[J]. ELECTROCHIMICA ACTA, 1986, 31 (11) : 1403 - 1411
[3] Modelling of the passivation mechanism of Fe-Cr binary alloys from ac impedance and frequency resolved rrde .2. Behaviour of Fe-Cr alloys in 0.5 M H2SO4 with an addition of chloride
Annergren, I
Keddam, M
Takenouti, H
Thierry, D
[J]. ELECTROCHIMICA ACTA, 1997, 42 (10) : 1595 - 1611
[4] Influence of the electrolyte composition and temperature on the transpassive dissolution of austenitic stainless steels in simulated bleaching solutions
Betova, I
Bojinov, M
Kinnunen, P
Pohjanne, P
Saario, T
[J]. ELECTROCHIMICA ACTA, 2002, 47 (20) : 3335 - 3349
[5] The ability of a surface charge approach to describe barrier film growth on tungsten in acidic solutions
Bojinov, M
[J]. ELECTROCHIMICA ACTA, 1997, 42 (23-24) : 3489 - 3498
[6] Modelling the formation and growth of anodic passive films on metals in concentrated acid solutions
Bojinov, M
[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 1997, 1 (02) : 161 - 171
[7] Passivation mechanism of iron in concentrated phosphoric acid
Bojinov, M
Betova, I
Fabricius, G
Laitinen, T
Raicheff, R
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 475 (01) : 58 - 65
[8] Analytical solution for the steady-state diffusion and migration involving multiple reacting ions - Application to the identification of Butler-Volmer kinetic parameters for the ferri-/ferrocyanide redox couple
Bortels, L
VandenBossche, B
Deconinck, J
Vandeputte, S
Hubin, A
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1997, 429 (1-2) : 139 - 155
[9] A POINT-DEFECT MODEL FOR ANODIC PASSIVE FILMS .1. FILM GROWTH-KINETICS
CHAO, CY
LIN, LF
MACDONALD, DD
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1981, 128 (06) : 1187 - 1194
[10] The structure of the passive film that forms on iron in aqueous environments
Davenport, AJ
Oblonsky, LJ
Ryan, MP
Toney, MF
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (06) : 2162 - 2173

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