STRUCTURAL TRANSFORMATION PROCESS IN UNDERPOTENTIAL MONOLAYER ADSORBATES - 2 TYPES OF ADSORPTION SITES ON THE ELECTRODE

A theory is proposed for the structural transformation process in mono layer adsorbates on surfaces with two types of adsorption sites. Sever al possibilities based on various combinations of the initial coverage of the adsorption sites by the adsorbate are discussed. The theoretic al results are used for analyzing experimental data obtained with both quasi-perfect and real electrodes and it is found that the transforma tion process on these electrodes is describable in terms of adsorption sites along the step edges and on the terraces between the steps on t he electrode surface.