Siberian Federal University

Structural changes during preparing and carbonization of carbonic materials from birch sawdust and coal-tar pitch mixtures have been presented. It has been shown that adding of coal-tar pitch in birch sawdust increase a yield of carbonic material during carbonization. It has been established that maximum of specific surface area (more than 1500 m2∙g-1) have washed away by water the carbonic materials obtained for carbonization of composites modified with KOH and KOH-ZnCl2.at 800°C. Modification of composite with phosphoric acid reduces to production more strong shaped carbonic material with specific surface area up to 500 m2∙g-1. It has been established that high-temperature air processing of all samples promotes developing of a void structure of carbonic products.