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Analysis of electrochemical noise by means of bispectral technique

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Abstract

Nonlinear processes are often encountered in the practice of electrochemical and corrosion measurements. Especially, activation-controlled processes are inherently nonlinear. Taking into account investigations of electrode reactions, linear approximation is a popular approach. In this introductory paper, the possibility of extension of electrochemical noise (EN) measurements to the nonlinear regime is presented. Natural consequence of focusing on nonlinear processes is application of higher-order spectral techniques. Utilization of bispectral representation enables analysis of stationarity and linearity properties of EN. The authors present algorithm enabling assessment of both quantities and also exemplary analysis of noise generated during cathodic polarization, which is important for corrosion protection.

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Authors and Affiliations

  1. Department of Electrochemistry, Corrosion and Materials Engineering, Gdańsk University of Technology, Narutowicza Str. 11/12, 80-952, Gdańsk, Poland

    K. Darowicki & A. Zieliński

Authors
  1. K. Darowicki
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  2. A. Zieliński
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Corresponding author

Correspondence to A. Zieliński.

Additional information

Presented at the 4th Baltic Conference on Electrochemistry, Greifswald, 13–16 March 2005.

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Darowicki, K., Zieliński, A. Analysis of electrochemical noise by means of bispectral technique. J Solid State Electrochem 11, 109–116 (2007). https://doi.org/10.1007/s10008-005-0078-7

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  • DOI: https://doi.org/10.1007/s10008-005-0078-7

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