Dual site-bond description of heterogeneous surfaces

MAYAGOITIA, V.; ROJAS, F.; RICCARDO, J.L.; PEREYRA, V.D.; ZGRABLICH, G.

PHYSICAL REVIEW B

AMER PHYSICAL SOC

Lugar: New York; Año: 1990 vol. 41 p. 7150 - 7155

1098-0121

A dual description based on sites and bonds is developed for characterization of the adsorptive energy of a heterogeneous surface, and it is shown how to use the description in order to study the adsorption and the surface diffusion of gases. The joint site-bond energy distribution is determined through a correlation function in such a way as to allow for the maximum degree of randomness in the network permitted by the construction principle. This function contains valuable information about the topology of the energy surface and strongly affects adsorption isotherms and surface diffusion coefficients. © 1990 The American Physical Society.