Electrochemistry of the Redox-Active Langmuir–Blodgett Films Coated on Glassy Carbon Electrodes

In order to study the electrochemical behavior of a redox species in the Langmuir–Blodgett (LB) film on a glassy carbon (GC) electrode, three kinds of amphiphilic redox compounds, each carrying an anthraquinone, a viologen, and a ferrocene moiety, were confined on the electrode surfaces. Prior to the deposition of the film on the electrode, surface pressure–area isotherms for a number of mixed films of the redox-active amphiphiles and arachidic acid were recorded and the stability of the monolayers was discussed. Finally, the cyclic voltammetric behavior of the LB film-modified electrodes was discussed in terms of the changes in the structure and the nature of the LB film caused by the redox reactions.