Thermal decomposition of 1st stage fluorine–graphite intercalation compounds

A study was made on the thermal decomposition products of fluorine–graphite intercalation compounds (CxF) with a 1st stage structure. Residual carbon obtained by the decomposition of C2.5F at 500°C possesses graphite structure with a low crystallinity, the distance between carbon sheets being larger than that of the host graphite by 14 pm. Reactive fluorocarbon gases are evolved by the decomposition, and successively react to give the deposits of carbon and fluorocarbons on the reactor wall as well as the gaseous perfluoroalkanes.