Ternary GICs containing sodium associated with chloride, bromide and iodide
ions have been synthesized by heating graphite with liquid sodium in the p
resence of NaCl, NaBr, and NaI in solid or liquid state. Similar ternary co
mpounds could not be obtained with NaF, but quaternary phases G-Na-I-F and
G-Na-Cl-F have been synthesized. (C) 2000 Elsevier Science Ltd. All rights
reserved.