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Electrochemical potential noise analysis of Cu-BTA system using wavelet transformation

Attarchi, M ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jelechem.2009.06.008
  3. Publisher: Elsevier , 2009
  4. Abstract:
  5. Electrochemical potential noise analysis was used to investigate corrosion behavior of copper electrodes in presence of 0.001, 0.005, 0.01 and 0.02 M benzotriazole (BTA) inhibitor. Energy distribution of the potential noise was obtained from wavelet transformation using the 4th order Daubechies pattern. Two lowest frequencies were added-up and fitted to the impulse response of the first order circuit to achieve the time-constant vs. concentration (T-C) diagram. T-C diagram can be used either as a conventional diagram of inhibition efficiency or a tool for evaluation of the surface film dielectric constant. The assumptions made in this treatment were confirmed by EIS method. © 2009 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Benzotriazole ; Electrochemical noise analysis ; Inhibition ; Potential noise ; Corrosion inhibitors ; Impulse response ; Benzotriazole ; Benzotriazole inhibitors ; Copper electrodes ; Corrosion behavior ; Daubechies ; Dielectric constants ; Electrochemical noise analysis ; Electrochemical potential ; Energy distributions ; First order ; Inhibition ; Inhibition efficiency ; Noise analysis ; Potential noise ; Surface films ; Wavelet transformations ; Electrodes
  8. Source: Journal of Electroanalytical Chemistry ; Volume 633, Issue 1 , 2009 , Pages 240-245 ; 15726657 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0022072809002113