Electrochemical Characteristics of Nanosized Cu, Ni, and Zn Cobaltite Spinel Materials

For a long time, transition metal oxide systems have been considered well explored materials in heterogeneous catalysis. Amongst, the spinel-type oxides, such as cobaltites (Co3O4) received significant attention, owing to their use many industrial applications. In present study, nanosized Cu, Ni, and Zn cobaltite spinel oxides were synthesized by simple hydrothermal method. Physicochemical characterization of was performed utilizing XRD, HRTEM, CO2-TPD, XPS techniques. The textural characteristics (BET-surface area, pore size, etc.) samples determined from N2 physisorption measurements at ?196 °C. CO2-electrocatalytic reduction selected model reaction evaluate electrochemical performance cobaltites. materials, hydrogen produced main product whole potential, along with other products, CO HCOOH. Despite advantages, catalytic CO2 catalysts is still far adequate, which principally ascribed low number active sites combined poor electrical conductivity.