Analyzing electrochemical noise with Chebyshev’s discrete polynomials |
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Authors: | M G Astaf’ev L S Kanevskii B M Grafov |
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Institution: | (1) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia |
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Abstract: | The principles underlying a novel method intended for analyzing experimental data obtained when studying fluctuation processes are considered. The method in question is Chebyshev’s spectroscopy. The application of this method allows one to determine statistic characteristics of steady-state electrochemical noise against the background of severe deterministic interference without invoking the procedure of the fitting of the initial data. The potentialities of this novel method, which is intended for treating noise experiment, are demonstrated by examining model examples and analyzing the electrochemical noise generated by a lithium electrode placed in an aprotic organic electrolyte. |
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Keywords: | electrochemical noise Fourier spectroscopy Chebyshev spectroscopy fitting Chebyshev’ s discrete polynomials lithium electrode |
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