Collect. Czech. Chem. Commun. 1996, 61, 973-984

Chronopotentiometry with an Alternating Currentat Cylindrical Microelectrodes

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

Departamento de Química Física, Universidad de Murcia, E-30100 Murcia, Spain


A theoretical study on the application of the first cycle of alternating current to cylindrical microelectrodes is presented. The analytical expressions obtained here are applicable to electrodes with radii of up to 50 μm, which are in the range of "large" microelectrodes. A method for determination of the kinetic parameter ks independently of α and methods for calculation of E0 are proposed.

Keywords: Chronopotentiometry; Alternating current; Cylindrical microelectrodes.