Effect of Water Adsorption on Ion Dynamics in Confined Geometry: Na+-Faujasites and Homoionic Alkali Exchanged Montmorillonite

Cyril Abrioux (1) , Sébastien Balme (1) , Benoit Coasne (1) , Sabine Devautour-Vinot (1) , Mohamed Kharroubi (1) , Guillaume Maurin (1) , François Henn (1)

1 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

Various experimental and molecular simulation methods are used to investigate water adsorption and its related effects on ion dynamics in two typical examples of microporous solids: Na+-Faujasites and homoionic alkali exchanged montmorillonites. Influence of the confinement, of the cationic density and of the cation size is examined. It is then shown that all these parameters play a key role in water adsorption thermodynamics and in the cation/water subsystem dynamics.

Domaines: Chimie théorique et/ou physique

Cyril Abrioux, Sébastien Balme, Benoit Coasne, Sabine Devautour-Vinot, Mohamed Kharroubi, et al.. Effect of Water Adsorption on Ion Dynamics in Confined Geometry: Na+-Faujasites and Homoionic Alkali Exchanged Montmorillonite. 3rd International Conference on Physics of Solid State Ionics, Oct 2009, Kumamoto, Japan. pp.19. ⟨hal-00584840⟩