Determination of the surface fractal dimension for porous media by capillary condensation

摘要

ew describe several methods of evaluating the surface fractal dimension of porous media. These include the thermodynamic method and the fractal version of Frenkel-Halsey-Hill theory. Neither method yields accurate estimates of the fractal dimensions of porous solids under the Whole range of experimental scales. We propose a modified thermodynamic method hat is Relatively simple but is significantly more accurate than Neimark's relation from the adsorption Experiments.