Current oscillations during the anodic dissolution of copper in trifluoroacetic acid

被引：11
|
作者：
Potkonjak, Nebojsa I. [1 ]
Potkonjak, Tanja. N. [2 ]
Blagojevic, Stevan N. [1 ]
Dudic, Boris [3 ]
Randjelovic, Danijela V. [4 ]
机构：
[1] Inst Gen & Phys Chem, Dept Electrochem, Belgrade 11000, Serbia
[2] Town Planning Inst Belgrade, Belgrade 11000, Serbia
[3] Univ Belgrade, Fac Biol, Belgrade 11000, Serbia
[4] IChTM Inst Microelect Technol & Single Crystals, Belgrade 11000, Serbia
来源：
CORROSION SCIENCE | 2010年 / 52卷 / 05期
关键词：
Copper; Polarization; Potentiostatic; Acid corrosion; Passivity; MIXED-MODE OSCILLATIONS; BAR-ELECTROLYTE INTERFACE; FLOW DOUBLE ELECTRODE; POINT-DEFECT MODEL; MATHEMATICAL-MODEL; PITTING CORROSION; CHLORIDE SOLUTION; ELECTROCHEMICAL SYSTEM; PASSIVITY BREAKDOWN; PHOSPHORIC-ACID;
D O I：
10.1016/j.corsci.2010.02.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A phenomenon of current oscillators was characterized crosswise active-passive potential region during the electrodissolution of copper electrode in trifluoroacetic acid (TFA). The current density-potential curves show two transition points. A potential region of current oscillations was found as a part of limiting current region. The Cu vertical bar TFA electrochemical oscillator was found to displaying rich dynamical response on varying the temperature and the applied potential. The Cu vertical bar TFA system display current oscillation behaviour from the mono-periodic to the mixed-mode (relaxation type). Changes of the electrode surface structure and morphology were investigated by X-ray diffraction spectroscopy, atomic forced microscopy and optical microscopy. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1618 / 1624
页数：7
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