A mechanism of interaction of copper with a deoxygenated neutral aqueous solution

被引：35

作者：

Bojinov, Martin ^{[1
]}

Betova, Iva ^{[2
]}

Lilja, Christina ^{[3
]}

机构：

[1] Univ Chem Technol & Met, Dept Phys Chem, BU-1756 Sofia, Bulgaria

[2] Tech Univ Sofia, Dept Chem, Sofia 1000, Bulgaria

[3] Swedish Nucl Fuel & Waste Management Co, SE-10124 Stockholm, Sweden

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 09期

关键词：

Copper; EIS; Electrochemical calculation; Modelling studies; Kinetic parameters; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; IN-SITU STM; ANODIC-OXIDATION; POLYCRYSTALLINE COPPER; ALKALINE-SOLUTIONS; DISK ELECTRODE; BORAX SOLUTION; INITIAL-STAGES; FE-SEM; CORROSION;

D O I：

10.1016/j.corsci.2010.05.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrochemical behaviour of Cu exposed to deoxygenated borate buffer for 330 h was characterised by chronopotentiometry, voltammetry, electrochemical impedance spectroscopy and cupric ion-selective electrode measurements. The results were interpreted by a quantitative kinetic model of the copper/electrolyte interface featuring two adsorbed intermediates produced by interaction of Cu with adsorbed water and electrochemical reduction of soluble divalent copper. The model reproduces successfully both the current vs. potential curve and the electrochemical impedance spectra around the open-circuit potential. On the basis of the experimental and calculation results, tentative conclusions for the interplay between hydrogen generation and copper corrosion are drawn. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2917 / 2927

页数：11

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