The Effect of Morphology of Activated Electrodes on Their Electrochemical Activity

Electrochemical aspects of formation of dendrites

“…where j, j 0 and j L are the current density, exchange current density and limiting diffusion current density, respectively, and [2,10,17].…”

“…1. The electrode surface irregularities are buried deep in the diffusion layer, which is characterized by a steady linear diffusion to the flat portion of the surface [7,10,19]. * The reversible potential of a surface with radius of curvature rcur would depart from that of a planar surface by the quantityEr = 2V / (nFrcur), where  is the interfacial energy between metal and solution, and V molar volume of metal [18].…”

The Cathodic Polarization Curves in Electrodeposition of Metals

“…Hence, the polarization curves which include ohmic potential drop can be simulated by using Eqs. (1.36) and (1.38) [9]. The shapes of the polarization curves depend strongly on the i 0 /i L ratios.…”

“…When Eq. (1.13) can be rewritten in the form: Using the current density-overpotential relationships and the procedure for the determination of the ohmic potential drop, the polarization curves for electrodeposition processes can be successfully simulated [9,20]. The current density-overpotential curve equation (Eq.…”

“…However, formation of individual grains or granules at low overpotentials was not possible to explain by this assumption. Recently, it was discussed [9] the linear dependence of current density on the overpotential for the fast electrochemical processes, and it was shown that this linear dependence can be ascribed to the ohmic control of the electrodeposition process [10][11][12][13].…”