Single pit on iron generated by SECM - An electrochemical impedance spectroscopy investigation

被引：39
作者：
Gabrielli, C. [1 ]
Joiret, S. [1 ]
Keddam, M. [1 ]
Portail, N. [1 ]
Rousseau, P. [1 ]
Vivier, V. [1 ]
机构：
[1] Univ Paris 06, CNRS, Lab Interface & Syst Electrochim, UPR 15, F-75252 Paris 05, France
来源：
ELECTROCHIMICA ACTA | 2008年 / 53卷 / 25期
关键词：
EIS; pitting corrosion; SECM; iron;
D O I：
10.1016/j.electacta.2008.01.013
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The analysis of a single pit behavior oil iron in various media (sulfuric acid, borate buffer, and potassium hydroxide solutions) is reported, The use of SECM technique to generate a single pit has allowed usual electrochemical techniques to be applied. Electrochemical impedance spectroscopy was used to characterize the pit propagation. In acidic solution, the pit returned to its passive state quickly whereas for the same amount for chloride ions generated locally, the pits remained active for long time in KOH Solution. An intermediate behavior was evidenced in borate buffer for which a slow repassivation ascribed to the accumulation of insoluble corrosion products inside the pit was observed. The Raman analysis also evidenced the strong influence of the thin-layer-cell configuration on the nature of corrosion products in borate buffer. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7539 / 7548
页数：10
相关论文
共 50 条
  • [11] Probing of local dissolution of Al-alloys in chloride solutions by AFM and SECM
    Davoodi, A.
    Pan, J.
    Leygraf, C.
    Norgren, S.
    [J]. APPLIED SURFACE SCIENCE, 2006, 252 (15) : 5499 - 5503
  • [12] In situ investigation of localized corrosion of aluminum alloys in chloride solution using integrated EC-AFM/SECM techniques
    Davoodi, A
    Pan, J
    Leygraf, C
    Norgren, S
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2005, 8 (06) : B21 - B24
  • [13] MEASUREMENTS WITHIN THE DIFFUSION LAYER USING A MICROELECTRODE PROBE
    ENGSTROM, RC
    WEBER, M
    WUNDER, DJ
    BURGESS, R
    WINQUIST, S
    [J]. ANALYTICAL CHEMISTRY, 1986, 58 (04) : 844 - 848
  • [14] SPATIOTEMPORAL DESCRIPTION OF THE DIFFUSION LAYER WITH A MICROELECTRODE PROBE
    ENGSTROM, RC
    MEANEY, T
    TOPLE, R
    WIGHTMAN, RM
    [J]. ANALYTICAL CHEMISTRY, 1987, 59 (15) : 2005 - 2010
  • [15] Fushimi K, 1999, ELEC SOC S, V98, P626
  • [16] Use of a liquid-phase ion gun for local breakdown of the passive film on iron
    Fushimi, K
    Azumi, K
    Seo, M
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (02) : 552 - 557
  • [17] Initiation of a local breakdown of passive film on iron due to chloride ions generated by a liquid-phase ion gun
    Fushimi, K
    Seo, M
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (11) : B450 - B456
  • [18] A SECM assisted EQCM study of iron pitting
    Gabrielli, C.
    Joiret, S.
    Keddam, M.
    Perrot, H.
    Portail, N.
    Rousseau, P.
    Vivier, V.
    [J]. ELECTROCHIMICA ACTA, 2007, 52 (27) : 7706 - 7714
  • [19] Electrochemical impedance spectroscopy investigations of a microelectrode behavior in a thin-layer cell: Experimental and theoretical studies
    Gabrielli, C.
    Keddam, M.
    Portail, N.
    Rousseau, P.
    Takenouti, H.
    Vivier, V.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (41) : 20478 - 20485
  • [20] Development of a coupled SECM-EQCM technique for the study of pitting corrosion on iron
    Gabrielli, C
    Joiret, S
    Keddam, M
    Perrot, H
    Portail, N
    Rousseau, P
    Vivier, V
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (03) : B68 - B74
12345