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On skewed ARC plots of impedance of electrodes with an irreversible electrode process

1990; Elsevier BV; Volume: 35; Issue: 1 Linguagem: Inglês

10.1016/0013-4686(90)85051-n

1873-3859

Amos Maritan, Flavio Toigo,

Force Microscopy Techniques and Applications

By a careful analysis of the form of the current implied by the boundary conditions satisfied by the solution of Poisson's equation, we generalize previous results and show that irreversible redox processes at a self similarly rough (fractal) electrode give rise to a skewed arc plot in the complex impedance-plane. We also discuss the form of scaling relations obeyed by the current at the electrode to ensure the validity of Ohm's law in the solution.