Résumé
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.