Studies of Active Carbons of Controlled Structural Properties

Abstract

Surface properties of active carbons of controlled structural properties were studied by using low-temperature nitrogen adsorption isotherms measured over the entire range of equilibrium pressures from 10-3 Torr to the saturation pressure. A special emphasis was placed on characterization of these carbons in terms of the adsorption energy distribution (AED) function. In comparison to the pore-size distribution the AED function is more universal because it provides information about global energetic heterogeneity of a porous solid, which arises from both structural and surface heterogeneities. Analysis of the AED functions showed that the carbons studied are, to a great extent, energetically and structurally homogeneous microporous solids.KeywordsActive CarbonSaturation PressureNitrogen Adsorption IsothermExternal Surface AreaMicroporous CarbonThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.