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Current oscillations during the anodic dissolution of copper in trifluoroacetic acid

Authorized Users Only
2010
Authors
Potkonjak, Nebojsa I.
Potkonjak, Tanja. N.
Blagojević, Stevan
Dudic, Boris
Ranđelović, Danijela
Article (Published version)
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Abstract
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.
Keywords:
Copper / Polarization / Potentiostatic / Acid corrosion / Passivity
Source:
Corrosion Science, 2010, 52, 5, 1618-1624
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Projects:
  • Fizička hemija dinamičkih stanja i struktura neravnotežnih sistema - od monotone do oscilatorne evolucije i haosa (RS-142025)

DOI: 10.1016/j.corsci.2010.02.021

ISSN: 0010-938X

WoS: 000277224400011

Scopus: 2-s2.0-77949316105
[ Google Scholar ]
12
10
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/660
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IHTM

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