Kinetics and thermodynamics of individual stages of the electrode reaction have long been successfully studied by electrochemical methods. Enough to say, for example, that early 1960s the possibility was established to detect adsorption using conventional polarographic techniques already at a surface coverage of 0.1% . At that time, Stal G. Mayranovsky introduced the now widely used concept of b u lk and s ur face processes and substantiated the need to consider near electrode effects in kinetic measurements.