Abstract
Attempts have been made to obtain the cobalt spinel (CoAl2O4) by using corrosion of cobalt and aluminium chloride as catalysis. A few micron size powder was obtained when the corrosion product was hydrolyzed and calcinated at the temperature of 1073 K or more. The powder was identified as CoAl2O4 spinel by XRD diffraction analysis. Corrosion synthesis as one of the inorganic syntheses is explained from the viewpoint of electrochemical phenomena and considered its merits and demerits in the case of making the spinel of CoAl2O4.
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