HYDRODYNAMIC MICROELECTRODES - THE MICRODISK ELECTRODE - THEORY AND EXPERIMENT

A computationally efficient fully implicit approach to the simulation of linear sweep and potential step voltammetry at a channel microdisk electrode is derived. The generality of the method is illustrated with reference to the simple case of a reversible one electron transfer re action. The influence of flow rate and the effects of axial, lateral a nd normal diffusion upon the electrolysis current are quantified. Scan rate and electrode geometry dependences are established and the requi rements for measurement of true steady state hydrodynamic voltammogram s defined.