Synthesis of intercalation compounds of alkali metal atoms and a halogen molecule with quasi one dimensional carbon crystal “carbolite”

Abstract

Alkali metal atoms and a halogen molecule have been intercalated in quasi one dimensional carbon crystal “carbolite”. Carbolite was synthesized by quenching carbon are on copper plate or sapphire plate at the room temperature. Linear carbon chains were generated by quenching and arrayed in a direction perpendicular to the substrate plate. The triangularly distributed array was a coarse aggregation of chains by the van der Waals force. Therefore it was expected that the intercalation of, for example, an alkali metal atom was possible similarly to the graphite intercalation. The in-situ change of the electrical resistance of intercalated carbolite by the heat treatment has been investigated. The temperature dependence of the resistance has shown a thermal activation type.