The structure of the cobalt metal particles formed in Co3O4 reduction microspheres produced by ultrasonic spray pyrolysis

Аннотация

The process of the reduction spherical Co₃O₄ particles to metallic Co in a continuous H₂ flow at the temperature interval (200–350°C) was studied using the XRD method. The phase analysis of the reduced particles showed their non-single state (the coexistence of α-Co and β-Co). The β-Co concentration increases with an increase in the reduction temperature.