Note on the theory of three-dimensional growth of the porous passivating layers on metals |
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| Authors: | Andrew V. Noskov Elena P. Grishina |
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| Affiliation: | (1) Institute of Solution Chemistry, Russian Academy of Sciences, Academicheskaya str., 1., Ivanovo, 153045, Russia |
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| Abstract: | ![]()
An analytical relationship “the current peak height—the potential sweep rate” is derived for the three-dimensional film formation under ohmic resistance control. The model takes into account both the changing of the coverage degree and the thickening of the surface film. It is shown that a criterion for definition of the growth type (2D or 3D) of the surface film can be offered. An offered model is tested for anodic oxidation of silver in sulfuric acid solution. |
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| Keywords: | Layer-pore resistance model Three-dimensional growth Current peak Thickening rate Silver Voltammetry |
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