Synthesis of Carbon–Carbon Composites Based on Anthracite of the Gorlovskii Basin

Abstract

The possibility of producing carbon–carbon composites by catalytic chemical vapor deposition has been investigated. Anthracite dust of deposits in the Gorlovskii basin was used as an initial carbon matrix. Salts of nickel acetate and iron oxalate were used to form catalytically active metal particles (nickel and iron) on the surface of anthracite. The precursor salts were supported by an incipient wetness impregnation of anthracite samples with aqueous solutions. Optimal conditions of thermal treatment in inert and reducing media were determined for the used salts. Scanning electron microscopy was used to study the secondary structures of the original anthracite with supported metals and synthesized carbon–carbon composites. Using the low-temperature nitrogen adsorption method, a significant increase in the specific surface area of an anthracite sample with supported nickel as a result of its treatment in an atmosphere of saturated C₂–C₄ hydrocarbons at 600°C was demonstrated.