Abstract
The effect of potential difference in the solution on the electrochemical system was evaluated with the FEM (Finite Element Method) calculation. We made the theoretical analysis for the effect of Luggin capillary on the potential distribution, and the current distribution on the sample electrode. This calculation evaluated the error in the measurement of electrode potential of the electrochemical system. We proposed the optimal position of Luggin capillary for the electrode potential measurements and mentioned the deviation of the current distribution in the electrode surface by the electrode shapes and by the distance between the electrodes.
