Synthesis of air-stable and highly electrically conductive graphite intercalation compounds

摘要

A range of materials such as alkali-metal atoms and metal halides can intercalate into the interlayers of lamellar graphite to form graphite intercalation compounds (GICs). Although GICs are known to be highly electrically conductive, their instability has stood in the way of practical applications. We previously reported that commercially available flexible graphite sheets (PGS~R) could be used to prepare air-stable and highly conductive GICs [1]. However, even with the use of PGS, some GICs remain unstable. In this study, we have investigated air stability variation in two types of GICs. Furthermore, we determined the important factors that improve the air stability of GICs.