A SIMPLE-MODEL FOR MICELLIZATION AND MICELLE TRANSFORMATIONS ON ELECTRODE SURFACES

A simple semi-molecular model based on the principles of small system thermodynamics is presented to describe two-dimensional micellization and micelle transformations on electrode surfaces. The model predicts slightly deformed capacitance peaks in the polarization region where t he formation/destruction of two-dimensional micelles occurs. The appea rance of capacitance peaks also characterizes all micelle transformati ons on an electrode except their collapse into a compact layer. In thi s case, the model predicts abrupt vertical steps in the plots of charg e density and differential capacity against potential. The above predi ctions are compared with experimental data and discussed.