Inductance at Low Frequency: Adsorption

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Inductance and Adsorption
A few recent articles triggered my interest, so I checked my files. Here is a short summary and some references!

The presence of low frequency inductive loops seems to be most prevalent in systems involving iron in sulfuric acid or aluminum in a variety of media. However, this is probably more a function of the attention paid to these systems rather than any fundamental criterion. The importance of potential was pointed out by Bai & Conway (ref 2) What looks like a simple two-time constant Nyquist plot at one potential may show undeniable signs of inductance at another potential (see Fig 5 of ref 2)

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REFERENCES
(1)  "AC Impedance of Faradaic Reactions Involving Electrosorbed Intermediates. Examination of Conditions Leading to Pseudoinductive Behavior Represented in Three-Dimensional Impedance Spectroscopy Diagrams", L Bai, BE Conway, J. Electrochem. Soc., 138 (1991), 2897.
(2) "Three-dimensional Impedance Spectroscopy Diagrams for Processes involving Electrosorbed Intermediates, Introducing the third electrode-potential variable-Examination of Conditions Leading to Pseudoinductive Behavior", L Bai, BE Conway,  Electrochimica Acta, 38 (1993), 1803.
(3) "The fixed state in impedance measurements of a two-step electrode reaction proceeding with accompanying adsorption of an intermediate product", K Darowicki, Electrochimica Acta, 42 (1997), 1073.
(4) "Ac-impedance and Raman spectroscopy study of the electrochemical behaviour of pure aluminium in citric acid media", IV Aoki, et. al., Electrochimica Acta, 46 (2001) 1871.
(5)  "Stability and electrochemical impedance of mechanisms with a single adsorbed species", DA Harrington, P van den Driessche, J. Electroanal. Chem., 501 (2001) 222.

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