Development of Stepwise Isotherms on Carbon Black Surfaces

Correlations of Henry's Law Gas–Solid Virial Coefficients and Chromatographic Retention Times for Hydrocarbons and Halocarbons Adsorbed on Carbopack C Carbon

“…This observation that the area calculated is decreased is similar to the result in previous work (20) using B 2s values and numeric integration. The use of a two-surface approach lowers the calculated surface area, brings closer agreement with the 13 m 2 /g (average of 12.5 and 13.7) reported previously (36,37), and demonstrates that Carbopack C can be considered to contain both higher-and lower-energy sites to which adsorbate molecules will be attracted. Previous work (20) with a twosurface analysis gave a virial analysis area of 13.2 m 2 /g while an inverse gas chromatography analysis (17) using argon as a probe gas gave an area of 10 m 2 /g.…”

Adsorption at the solid–liquid interface as the source of contact angle dependence on the curvature of the three-phase line

“…(20) and then Eq. (19). No difference in the value of Δθ was found to result from inverting a capillary.…”

“…(20) and then Eq. (19), and the value of θ at the other meniscus may be determined by measuring the separation distance, z u − z l , between the three-phase lines and applying Eq. (23).…”

Physical Adsorption of the Quantum Gas

“…In this paper, we extend the significant structure theory of f' is the partition function for the vibration normal to the surface and is exp(-hp1/2kT)/(l -e-hI/kT) fint is given as frot = [6] here y = (1/2S + 1) (h2/2irmkT)(L/Aom)0 == Oc [71 [8] In Eq. 6 and 8, the + sign is for Bose-Einstein statistics, while the -sign is for those cases where Fermi-Dirac statistics is followed.…”

“…McAlpin and Pierotti (1, 2) applied the significant structure theory of liquids (3,4) to a simplified system whose surface is a structureless uniform plane and in which physical adsorption occurs in the submonolayer region (5)(6)(7). According to their model, it is assumed that the adsorbed phase is a two-dimensional fluid adsorbed on a solid, energetically homogeneous, plane surface.…”