Interfacial Role of Cesium in Prussian Blue Films

The simultaneous measurement of current, mass and motional resistance magnitudes allows explaining the electrochemical cation insertion process during successive voltammograms around the Prussian Blue ⇄ Everitt's Salt system in an aqueous solution of CsCl. There are two different ways for entering cesium to the porous structure of Prussian Blue: one, enters chemically as CsCl by a spontaneous substitution of inner water molecules of the interstitial water cluster and, also can enter as counter-ion during the first cathodic scan of the electrochemical stabilisation process of Prussian Blue.