Collect. Czech. Chem. Commun. 1996, 61, 1432-1444

Application of Cyclic Chronopotentiometry to the Study of Slow Charge Transfer Reactions at the DME and the SMDE

Ángela Molina, Joaquín González and Carmen Serna

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


In this work we apply cyclic chronopotentiometry to analyze charge transfer reactions at spherical electrodes, highlighting the influence of electrode curvature and the formation of amalgam on the potential-time response. Moreover, methods are proposed for determining the formal potential and the kinetic parameters of the electrode reaction. Equations obtained for the dropping mercury electrode are transformed to those corresponding to a static mercury drop electrode and a plane electrode.

Keywords: Chronopotentiometry; Slow charge transfer reactions; DME; SMDE.