Charge neutralization process of mobile species developed during potentiodynamic conditions. Part 2: Simulation and fit of Probe beam deflection experiments

FERNANDO GARAY; RODRIGO A. IGLESIAS; CESAR A. BARBERO

Elsevier

Lugar: Amsterdam; Año: 2008 vol. 624 p. 211 - 211

span style="font-size: 12pt; font-family: "Times New Roman";">The theoretical model presented in Part 1 is employed to simulate and fit experimental Probe Beam Deflection (PBD) data of Fe(CN)63-/Fe(CN)64- and Fe3+/Fe2+ couples collected under voltammetric conditions. The dependence of beam deviation on the diffusion coefficients and on the charges of involved species is described. The fit of voltammetric curves was performed to get the values for the standard potential of each system as well as diffusion coefficients of electroactive species. The data were then employed to fit a set of experimental voltadeflectometric profiles collected at different beam-electrode distances. The least-squares Simplex algorithm was employed to fit proposed functions to e