Visualization of Electrochemical Behavior under Finite Conditions Using JAVA and Its Application for Assisted Learning.

Abstract

Electrochemical measurements in a three electrode system under finite conditions, e.g., at an electrode coated with a polymer film incorporating functional molecules have been simulated using a program written in the JAVA language. The simulation with or without a catalytic reaction by the functional molecules has been performed using the program. The shape of a cyclic voltammogram under finite conditions is different from that under infinite conditions applied to ordinary solution electrochemistry. The fraction of the functional molecules that accepted charges (R CT) has been calculated by integrating a concentration distribution. The current under finite conditions in a potentialstep measurement deviated from that under infinite conditions above R CT 0.5. The program was introduced to a document on the electrochemistry written in HTML. It can be used by many students in an electrochemistry class without heavy loads on the server computer.

Development of Electrochemical Analyzer for Polymer-Coated Electrode

“…When the exchange current density is large, the redox reaction is reversible [17], whereas when the exchange current density is so small that the ratio of the species does not obey a Nernstian equation, the redox reaction is irreversible [18]. "Inactive" means that the electron exchange between the electrode and a material doesn't take place in a potential range.…”