Time distribution of adsorption energies, local monolayer capacities, local isotherms and energy distribution functions on catalytic surfaces

Time separation of adsorption sites on heterogeneous surfaces by inverse gas chromatography

“…(14). The values off(e) for various systems have already been published [14,18]. In a recent work [15], however, it was found that the function ~(e; t) = Of(e)/c*~a x (16) is a better choice for the true energy distribution function, being an explicit function of the random variable e and the structural parameter t, asf(e; t) explained before [14].…”

Interrelations between Adsorption Energies and Local Isotherms, Local Monolayer Capacities, and Energy Distribution Functions, as Determined for Heterogeneous Surfaces by Inverse Gas Chromatography

“…, [11] where k is the Boltzmann constant, m the molecular mass, h the Planck constant, b g (T ) the partition function for rotations and vibrations of the free gas molecule, and v s (T ) the partition function of the adsorbed molecule. It has been found (8) that KRT is given by the relation…”

“…From all the above and other searches of the literature, one may easily come to the conclusion that nobody so far has tried a solution for f (ε) other than through the integral equation [1]. This is not true, however, since in four recent papers of ours (8)(9)(10)(11) we have done exactly that, employing an inverse gas chromatographic tool known as reversed-flow gas chromatography (RF-GC). A recent review on that is worth mentioning (12).…”

Dependence of adsorption rates with lateral interactions on local surface coverage of heterogeneous surfaces

“…The two above papers [1,2] were based on an idea initially published in 1999 [4][5][6][7] to measure experimentally through RF-GC time distribution of adsorption energies, local monolayer capacities, local isotherms, and probability density functions on heterogeneous surfaces, by circumventing altogether the dassical integral equation containing the overall experimental adsorption isotherm O (p, T), the local isotherm 0 ( p, T, e), and the energy distribution function f@) (see Eq. (1) of ref.…”