Abstract
We propose a method for the computation of changes in pHS of an electrolyte near the electrode in the cathodic reduction of dissolved oxygen. We show that, in the course of oxygen reduction with the limiting current in relatively acidic aqueous solutions (pH0 3), an abrupt increase in pHS (by 5–8 pH units) is possible. We describe the influence of a base electrolyte (KCl) and the thickness of the diffusion layer on the degree of alkalization of the electrolyte. In addition, we discuss the possible ways of practical application of the developed method.
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Tkalenko, M.D., Tkalenko, D.A. & Kublanovs'kyi, V.S. Change in the pH of Solutions and the Cathodic Passivation of Metals under the Conditions of Electrochemical Protection in Aqueous Media. Materials Science 38, 394–398 (2002). https://doi.org/10.1023/A:1021777817858
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DOI: https://doi.org/10.1023/A:1021777817858