Current‐voltage curves were determined on precious metal oxide‐coated titanium electrodes under conditions relevant to the chlor‐alkali industry. Electrodes in which the oxide coating was of a base metal or only partly of a precious metal were also studied. Clear electrocatalytic effects were found, though in general, linear Tafel behavior was not observed. A possible explanation for the lack of linear Tafel plots in terms of a semiconducting oxide coating was suggested.
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Kuhn et al. (1973) studied this question.