Adsorption of interacting particles on square, honeycomb and triangular correlated heterogeneous surfaces

Adsorption of interacting particles on highly correlated heterogeneous surfaces is studied through grand canonical Monte Carlo simulation and the effective substates approximation in the framework of the lattice-gas model. The adsorptive surface potential has been characterized by patches of weak and strong adsorbing sites arranged in a deterministic chessboard structure, with square, triangular or hexagonal geometry. The effects of heterogeneity and nearest-neighbor adsorbate–adsorbate interactions on the adsorption process are analyzed for square, honeycomb and triangular geometries and different patch sizes.