A SECM assisted EQCM study of iron pitting

被引：61

作者：

Gabrielli, C. ^{[1
]}

Joiret, S. ^{[1
]}

Keddam, M. ^{[1
]}

Perrot, H. ^{[1
]}

Portail, N. ^{[1
]}

Rousseau, P. ^{[1
]}

Vivier, V. ^{[1
]}

机构：

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

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 27期

关键词：

pitting corrosion; iron; SECM; EQCM;

D O I：

10.1016/j.electacta.2007.03.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The local breakdown of the iron passive layer and the resulting pitting corrosion of iron were studied for massive material and for a thin film on an electrochemical quartz crystal microbalance (EQCM). The initiation and the propagation of a single pit on iron were controlled through the local production of chloride anion thanks to the silver chloride reduction at the tip of the scanning electrochemical microscope (SECM). Experiments were performed in borate buffer and in KOH solution, in order to investigate the influence of the solution pH. The influence of the iron potential and of the amount of chloride anion necessary for the breakdown of the passive layer were also investigated. The frequency response of the quartz was correlated to the pit evolution with respect to time. After the breakdown of the passive layer, the frequency changes were then directly linked to the generation of Fe(II) during the pit growth. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：7706 / 7714

页数：9

共 48 条

[1] Application of localised electrochemical techniques to study kinetics of initiation and propagation during pit growth [J].

Annergren, I ;

Zou, F ;

Thierry, D .

ELECTROCHIMICA ACTA, 1999, 44 (24) :4383-4393

[2] Localized electrochemical impedance spectroscopy for studying pitting corrosion on stainless steels [J].

Annergren, I ;

Thierry, D ;

Zou, F .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (04) :1208-1215

[3]

[Anonymous], 1995, PHYS ELECTROCHEMISTR

[4] SCANNING ELECTROCHEMICAL MICROSCOPY - INTRODUCTION AND PRINCIPLES [J].

BARD, AJ ;

FAN, FRF ;

KWAK, J ;

LEV, O .

ANALYTICAL CHEMISTRY, 1989, 61 (02) :132-138

[5] Scanning electrochemical microscopy of metal/metal oxide electrodes. Analysis of spatially localized electron-transfer reactions during oxide growth [J].

Basame, SB ;

White, HS .

ANALYTICAL CHEMISTRY, 1999, 71 (15) :3166-3170

[6] AN ELECTROCHEMICAL QUARTZ-CRYSTAL MICROBALANCE STUDY OF LITHIUM INSERTION INTO THIN-FILMS OF TUNGSTEN TRIOXIDE .2. EXPERIMENTAL RESULTS AND COMPARISON WITH MODEL-CALCULATIONS [J].

BOHNKE, O ;

VUILLEMIN, B ;

GABRIELLI, C ;

KEDDAM, M ;

PERROT, H .

ELECTROCHIMICA ACTA, 1995, 40 (17) :2765-2773

[7] AN ELECTROCHEMICAL QUARTZ-CRYSTAL MICROBALANCE STUDY OF LITHIUM INSERTION INTO THIN-FILMS OF TUNGSTEN TRIOXIDE .1. MODELING OF THE IONIC INSERTION MECHANISM [J].

BOHNKE, O ;

VUILLEMIN, B ;

GABRIELLI, C ;

KEDDAM, M ;

PERROT, H ;

TAKENOUTI, H ;

TORRESI, R .

ELECTROCHIMICA ACTA, 1995, 40 (17) :2755-2764

[8] Electrochemistry of tert-butylcalix[8]arene -: C60 films using a scanning electrochemical microscope -: Quartz crystal microbalance [J].

Cliffel, DE ;

Bard, AJ ;

Shinkai, S .

ANALYTICAL CHEMISTRY, 1998, 70 (19) :4146-4151

[9] Scanning electrochemical microscopy. 36. A combined scanning electrochemical microscope quartz crystal microbalance instrument for studying thin films [J].

Cliffel, DE ;

Bard, AJ .

ANALYTICAL CHEMISTRY, 1998, 70 (09) :1993-1998

[10] Use of scanning reference electrode technique for characterizing pitting and general corrosion of carbon steel in neutral media [J].

Cui, N ;

Ma, HY ;

Luo, JL ;

Chiovelli, S .

ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (12) :716-721

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