Scaling behavior of adsorption on patchwise bivariate surfaces revisited
- Bulnes, Fernando Manuel
- Ramirez Pastor, Antonio Jose
- Zgrablich, Jorge Andres
DOIAbstract
The adsorption of gases on patchwise heterogeneous bivariate surfaces is studied. These surfaces are characterized by a collection of strong and weak adsorbing patches with a typical length scale l. Different forms and spatial arrangements of these patches determine different topographies characterized by an effective length, leff = σl, where σ takes values from 1 to 4 for the different topographies considered here. Previous studies showed that the mean square deviation between isotherms corresponding to different values of leff scaled as a power law with exponent α, without providing any physical interpretation of such behavior. In the present work, we introduce a different scaling function, χ(l), which is shown to be twice the difference ...
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