Twofold Description of Topological Disordered Surfaces

The “dual” theory is applied to describe the structure of adsorbent surfaces consisting of by several types of adsorption sites, each kind bearing a given connectivity (i.e., possessing a given number of delimiting bonds or energy barriers between sites), and the principal conclusion is that, for most of adsorbent surfaces, concomitantly with an energy segregation effect (sites and bonds group together forming alternated regions of very high and very low adsorption energies), a connectivity segregation effect can arise too (connectivity distributes throughout the network sensibly obeying adsorption energy correlations).