Spectral analysis of electrochemical noise with different transient shapes

Electrochemical noise and impedance study of aluminium in weakly acid chloride solution

“…The current transients reflect these tendencies, being very similar for unbuffered and pH 5.4 buffered solutions, but with a much larger variation at pH 4.3. The latter tend to be asymmetric with a fast current rise followed by a slower recovery, which is characteristic of the formation of metastable pits [31]. Inspection of the surface of the electrodes after each type of experiment showed no difference between the two chloride-containing solutions of the same pH, buffered and unbuffered, but in the pH 4.3 buffered chloride solution the surface showed a dark grey coloured roughened surface with tiny pits.…”

“…[28,29]. In recent years, the theory of electrochemical noise has been further developed to consider factors such as methods for trend removal [30], different transient shapes and electrode asymmetry [31][32][33], detection of localised and pitting corrosion [34,35], and partition of current fluctuations between different electrodes [36].…”

Dynamics of Electrochemical Noise of the Lithium Electrode in Aprotic Organic Electrolytes

“…The resultant primary surface of lithium turns more active, leading to statistical heterogeneity of the surface and higher potential fluctuations. A similar phenomenon is characteristic of various corrosion processes [10,16], in which fluctuations of the electrode potential of metal rise under the action of activating agents. The activation of the lithium electrode occurs simultaneously with the passivation of the naked surface.…”

Electrochemical noise analysis of the corrosion of AZ91D magnesium alloy in alkaline chloride solution

“…EN shows some advantages compared to the common electrochemical techniques: first, EN is able to instantaneously monitor the rate of the corrosion process [13][14][15][16][17][18][19]; second, EN is * Corresponding author. Tel.…”