摘要: The cyclic voltammetric response, which is obtained by measurements at microdisk electrodes (R ± 1 mm), may deviate strongly from theoretical predictions. cause of such effects due to nonlinear diffusion processes, which, in principle, are present unshielded disk electrodes. They increase with diminishing electrode radii and slow scan rates accordance the value dimensionless parameter = (D/aR2)1/2. A quantitative description mass transport can be achieved aid a two-dimensional simulation based on an implicit difference approximation. agreement experimental data very close. reversible quasi-reversible charge transfer discussed. To facilitate interpretation voltammograms, working-curves diagnostic criteria presented.
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