Anodic behaviour of zinc in methanol solutions of lithium perchlorate

Add time:09/10/2019    Source:sciencedirect.com

Anodic dissolution of poly- and single-crystals of zinc was performed in methanol solution of lithium perchlorate by means of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The mechanism of anodic dissolution of zinc in organic solvents occurs in two oxidation steps. It is the first step that ZnL+ surface anodic product is created. Stability of the surface product is much better in anhydrous organic environments than in aqueous media; because the product is stable, a barrier layer composed of ZnL+ is formed at low anodic overvoltage. The formation of the ZnL+ layer is much stronger on the low index (112¯0) than on the high-index plane (0 0 0 1), where the adsorption of anodic product is more difficult.

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