STAIRCASE VOLTAMMETRY WITH FINITE DIFFUSION SPACE

A theory of the staircase voltammetry in a thin-layer cell is develope d. The influence of the cell thickness and the redox reaction rate con stant on the current and the peak potentials is analyzed. For moderate ly thick cells, the kinetic maximum is predicted. The relationship bet ween peak currents and the square root of the scan rate is not linear and the response may entirely vanish if the redox reaction is fast, th e cell is very thin and the scan rate is slow.