Abstract

The effect of the presence of a charged thin gel layer on the electrode surface on mass transport of electroactive species of opposite charge was investigated. The layer was deposited using the electrochemically-induced free-radical polymerization method. The ferrocenyltrimethylammonium cation (FcN+) served as the electroactive probe. Ionic accumulation of the anodic electrode product was observed in experiments with normal sized electrodes. Microelectrodes were used without supporting electrolyte to study the contribution of migration to the overall mass transport to the modified surface.

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