Investigation on the application of platinum anode towards direct electrochemical reduction of solid metal oxides in CaCl2–CaO melt

Molten CaCl2–CaO system is a suitable electrolyte medium for reducing metal oxides to metal by in-situ electro-generated calcium metal. The graphite anode, which acts as a reactive anode in this melt, leads to several parasitic reactions and decreases the current efficiency. The present study investigates the usage of platinum anode towards the direct oxide electrochemical reduction of ThO2 and NiO by electro-generated calcium in CaCl2–1 wt