ELECTROLYSIS AT A DISC ELECTRODE IN A THIN ELECTROLYTE LAYER

Equations describing current and concentration of electroactive specie s at constant potential in a thin electrolyte layer at a disc electrod e were derived on the assumption that the current is controlled either by the rate of the electrode process or by the rate of diffusion. Mea surements of the anodic diffusion current in a solution of 0.005 M K4F e(CN)(6) in 1 M KCl in a cell with a controllable thickness of the ele ctrolyte layer showed the possibilities and limitations of the method. Copyright (C) 1997 Elsevier Science Ltd.