Electrochemical noise and impedance study of aluminium in weakly acid chloride solution

被引：37
作者：
Gouveia-Caridade, C
Pereira, MIS
Brett, CMA [1 ]
机构：
[1] Univ Coimbra, Dept Quim, P-3004535 Coimbra, Portugal
[2] Univ Lisbon, Dept Quim & Bioquim, P-1749016 Lisbon, Portugal
来源：
ELECTROCHIMICA ACTA | 2004年 / 49卷 / 05期
关键词：
electrochemical noise; electrochemical impedance spectroscopy; aluminium; corrosion; chloride;
D O I：
10.1016/j.electacta.2003.09.032
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical noise (EN) characteristics of pure aluminium in unbuffered potassium chloride solution and with acetic acid/sodium acetate buffer at pH 5.4 and 4.3 have been analysed to throw light on the influence of pH and of the presence of buffer at the aluminium surface on chloride ion-induced corrosion. Comparison has been made with results obtained by electrochemical impedance spectroscopy (EIS) and quantitative deductions made concerning the values of the noise resistance and the magnitude of the electrochemical impedance. Deviations between results obtained by the two experimental techniques are discussed. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：785 / 793
页数：9
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