STRATUL DUBLU ELECTRIC AL MONTMORILONITULUI. II. ANALIZE COMPARATIVE ALE MODELELOR

Vasile RUSU Institutul de Chimie al AŞM

Abstract

EDL FOR MONTMORILLONITE. II. COMPARATIVE ANALYSIS OF MODELS

The relationship potential - the distance from the surface of the solid towards the solution by the Gouy-Chapman model, the Stern model, and the modified Gouy-Chapman model were analyzed. Modeling performed according to the Stern model for H-montmorillonite and pillared Al-montmorillonite highlights the peculiarities of the double electric layer close to the basal and edge surfaces. The potential dynamics in the solution by the modified Gouy-Chapman model becomes identical to the Stern model if the main characteristics of Stern layer are attributed. Keywords: pillared Al-montmorillonite, basal and edge surfaces, electrical double layer.