The alkali metals are the elements which intercalate most easily into graphite in order to give graphite-electron donors lamellar phases. Among them, the three heavy alkali metals (potassium, rubidium and cesium) react most spontaneously with graphite1. Other metals however can be intercalated, but often with quite numerous difficulties2, 3: alkaline-earth metals (calcium, strontium, barium) and some lanthanides (europium and ytterbium).

Overview on the Chemistry of Intercalation into Graphite of Binary Metallic Alloys

Systematic study of 00L reflexuions of three ternary graphite-potassium-thallium phases led to a knowledge of the stacking strutcure of the intercalated metallic layers between the graphene planes.

B. Outti

Papers

Structures lamellaires variées pour les alliages d'intercalation graphite-potassium-thallium