stern layer

stern layer

[′stərn ‚lā·ər]
(physical chemistry)
One of two electrically charged layers of electrolyte ions, the layer of ions immediately adjacent to the surface, in the neighborhood of a negatively charged surface.
References in periodicals archive ?
Therefore, the catalytic role is due to the presence of premicelle and preponement of micellization by reactant; the two reactants are assumed to have penetrated the stern layer electrostatically [13].
4] is completely excluded from the stern layer of the micelle and 2) becomes
4] in the stern layer which increases the reaction rate as shown by the ascending branch of the curve.
The counter ions in the Stern layer are acted upon by electrostatic attraction, and those in the diffuse layer are acted upon by two equal but opposing forces: the electrostatic attraction force and the diffusive or thermal forces.
A more complex polarization model (O'Konski, 1960) that includes a conducting Stern layer around the particle surface has been proposed, mostly to reconcile the failure of the classical theory for latex particles.
The Stern layer conductivity and permittivity are usually also taken to be the same order as the medium permittivity and conductivity or are fitted to data.