Preparation of low-temperature graphite fluorides through decomposition of fluorinated-graphite intercalation compounds

The decomposition of CxFCly center dot zR (R = N2O4, N2O, SO2) fluorinated graphite intercalation compounds at 370-420 K leads to the formation of CxFCly graphite fluorides with x close to 2 and y close to 0.1. The CxFCly fluorides are first-stage compounds with an interlayer spacing of 0.60-0.61 nm. According to the synthesis conditions and their structure, these compounds can be classed with low-temperature C2F graphite fluorides. They are stable in air and inert atmospheres up to 720-750 and 750-780 K, respectively, which is comparable to the thermal stability of high-temperature CF and C2F graphite fluorides.