Effective adsorption energy and generalization of the Frumkin-Fowler-Guggenheim isotherm

Ions, adsorption and electric response of a ferrofluid cell

“…This could be due to the screening effect of the adsorbed ions on the effective adsorption energy. 40 A naive interpretation of the long desorption time could be based on the mechanism regulating the adsorption phenomenon. As well known, the adsorption can be considered as a chemical reaction between the particles present in the bulk, just in front of the adsorbing surface, and the adsorbing sites on the surface.…”

Lattice-gas model of a charge regulated planar surface

“…and the probability that a single site is occupied results in a selfconsistent Frumkin-Fowler-Guggenheim isotherm 32,33 specific to our model, p = e βμ e pβ(zI−U) 1 + e βμ e pβ(zI−U) .…”

A Model for Bias Potential Effects on the Effective Langmuir Adsorption–Desorption Processes

“…We assume that both k and τ do not depend on the effective density of adsorbed particles, σ(t). A more rigorous analysis of the adsorption when charged particles are involved requires investigating the behavior of the adsorption energy as a function of the density of adsorbed particles, following, for instance, the approaches discussed in other contexts [24][25][26]. In what follows, we will not include the already mentioned internal bias nor the dependence of the surface density of charges on the adsorption energy, because these important effects may be superimposed to the effect of the external bias, focused upon hereafter.…”