Metal–carbon C/Co nanocomposites based on activated pyrolyzed polyacrylonitrile and cobalt particles

Resumo

A new way of synthesizing metal–carbon nanocomposites via simultaneous pyrolysis and the chemical activation of a precursor based on polyacrylonitrile and cobalt carbonate under IR radiation is proposed. Structural characteristics of samples synthesized both without alkali and in the activation process are compared. The effect the metal has on the structure of the carbon and the size of its specific surface area is shown. The specific surface area of the sample synthesized with the simultaneous formation of the carbon matrix, its activation, and the reduction of the metal is 1232 m²/g. Cobalt nanoparticles are found to have cubic face-centered and hexagonal close-packed lattices.