Preparation of Graphite Bi-intercalation Compounds

Abstract

The preparation of graphite bi-intercalation compounds (GBCs) from stage-n GIC (n=2-4) is reviewed on the basis of experimental results. Twelve groups of GBCs were obtained by electrochemical, vapour phase and liquid phase methods. The c axis repeat distance Ic of the GBCs was very close to the sum of the interplanar distances of the two intercalates, measured in binary compounds. The bi-intercalation process is in competition with several kinds of other reactions such as displacement of intercalate.