Temperature dependence of scaling laws in adsorption on bivariate surfaces.

F. ROMÁ; F. BULNES; A. J. RAMIREZ-PASTOR; G. ZGRABLICH

PHYSICAL CHEMISTRY CHEMICAL PHYSICS

Año: 2003 vol. 5 p. 3694 - 3699

1463-9076

The adsorption of particles with nearest-neighbor repulsive interactions is studied through Monte Carlo simulation on bivariate surfaces characterized by patches of weak and strong adsorbing sites of size l. Patches are considered to have a square geometry and they can be either arranged in a deterministic ordered structure or in a random way. Quantities are identified which scale obeying power laws as a function of the scale length ll. Patches are considered to have a square geometry and they can be either arranged in a deterministic ordered structure or in a random way. Quantities are identified which scale obeying power laws as a function of the scale length ll and its dependence on the temperature is determined. Consequences of this finding are discussed for the determination of the energetic topography of the surface from adsorption measurements.