Influence of the Nature of Chelating Agents on the Activity and Structural Pre-Organization of Metal Oxide Catalysts for the Growth of Carbon Nanotubes Synthesized by the Method of Polymerized Complex Precursors

Metal oxide catalysts (MOCs) for the growth of carbon nanotubes with the general composition Fe2Co/CaCO3 were synthesized by the polymerized complex precursor (PCP) method using chelating agents. It has been established that metal oxide catalysts synthesized by the method of polymerized complex precursors are an order of magnitude more effective than MOCs synthesized by the sol-gel technology. The productivity of MOCs obtained using two ligands is significantly higher than the efficiency of monoligand samples. As a result of the study, it was found that the use, in addition to carbohydrates, of a wide range of chelating agents of various natures (polyalcohols, hydroxy acids, amino acids, etc.) in the synthesis of metal oxide catalysts for the growth of CNTs by the method of polymerized complex precursors is advisable and makes it possible to affect the stage of preorganization of the structure of MOCs precursor, specific productivity of metal oxide catalysts as well as qualitative composition of carbon products.