3200.     SIPS, R.  Structure of a Catalyst Surface.  Jour. Chem. Phys., vol. 16, No. 5, 1948, pp. 490-495.

        Mathematical method is described that makes it possible to calculate rigorously the distribution of the adsorption energies of the sites of a catalyst surface when the adsorption isotherms are known, if the adsorption is localized and there are no interactions.  This method is applied to a Freundlich isotherm, and to a new theoretical isotherm, which reduces to the Freundlich type for small pressures but exhibits saturation for large pressures.  It is shown that this isotherm corresponds to a distribution function that differs very little from a Gaussian one.  The case of atomic adsorption of gases is considered also.