Effect of the Type of Matrix on the Electron State of Cobalt Cations in Impregnated Catalytically Active Nanostructures

Abstract

Physicochemical methods are used to study the electron state of cobalt ions in nanostructures obtained during thermal decomposition of salts in the surface layer and in the volume of ZSM-5, Al₂O₃, SiO₂, and ERI matrices. The influence of the matrix type and cobalt/adsorbed oxygen ratio on the electron state of cobalt is shown. The potential for immobilization of cobalt ions with tetrahedral and octahedral oxygen of the matrices and the change in oxidation state Co²⁺ → Co³⁺ resulting from transition from tetrahedral and octahedral coordination is established.