Graphite, intercalation compounds nitrates

Capacitance measurements of carbon electrodes have also been made in molten halides, particularly chlorides [30-32], molten nitrates [33, 34], and in cryolite—alumina melts (graphite and glassy carbons). In cryolite—alumina melts, the double-layer capacitance of the basal plane of graphite, in the range 0.7—1.0 V (vs aluminum reference electrode) is about 20[xF/cm at 0.9 V, i.e., in a potential range where no appreciable flow of current has been observed. Data indicate that the capacitance is influenced by adsorbed species from the melt, possibly yielding intercalation compounds, and uncertainty in the true area of the electrode [34]. 

STABILIZATION OF GRAPHITE NITRATE VIA CO-INTERCALATION OF ORGANIC COMPOUNDS... 

---