Collect. Czech. Chem. Commun. 1997, 62, 709-728

Chronopotentiometric Study of EC Mechanism Duringthe First Cycle of Alternating Current

Ángela Molina, Francisco Martínez-Ortiz, Ricardo Ruiz and Manuela López-Tenés

Departamento de Química Física, Universidad de Murcia, Espinardo 30071 Murcia


The theoretical approach to the application of the first period of a sinusoidal current at static and dynamic spherical electrodes for study of EC mechanism is presented. Methods for determining heterogeneous and homogeneous kinetic parameters are proposed. In order to check theoretical result, the rate of benzidine rearrangement was evaluated from transition time measurements.

Keywords: First period; Benzidine rearrangement; Heterogeneous kinetic parameters; Homogeneous kinetic parameters.