An overview of physical adsorptio methods for the characterization of finely divided and porous materials and their application to fluid cracking catalysts

摘要

The Phenomenon. The primary data of physical adsortpion, expressed as the adsorption isotherm, is the measure of the equilibrium quantity of an adsorptive present at a gas/solid interface at a fixed temperature as a function of pressure. In addition to providing a measure of the extent of a surface, the adsorption isotherm conveys an abundance of information about the energetic heterogeneity and geometric topology or porosity of a solid substrate.