Collect. Czech. Chem. Commun. 1987, 52, 848-866

Potentiostatically controlled transient diffusion on solid electrodes with rough surface

Ondřej Weina and Fawzi Hassan Assafb

a Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol, Czechoslovakia
b University of Assiut, Assiut, Egypt


Transient limiting diffusion currents were measured under potentiostatic conditions on several platinum electrodes for various solutions of sucrose with profoundly different diffusivities of a depolarizer. Systematic increase of the current densities against a Cottrellian (penetration) asymptote is correlated with parameters of roughness description.