Formation of fine iron powder on the cathode

Morphology of Different Electrodeposited Pure Metal Powders

“…Three types of electrolytes were used for Fe powder electrodeposition (1) electrolytes based on sulfate salts [59][60][61][62][63]; (2) electrolytes based on chloride salts [65][66][67][68][69]; and (3) alkaline electrolytes: reduction of Fe(OH) 2 suspension in alkaline media [71]; formation of Fe(OH) 3 , and its reduction from the suspension of Fe An interesting method for producing very fine Fe powder by the electrolysis in a two-layer electrolytic bath using a hydrocarbon solvent from an oil refining fraction as an upper organic layer has also been suggested [72]. It was also shown that in the presence of chelating agents, fine, nondendritic Fe powders could be obtained [73].…”

A facile method for the simultaneous recovery of rare-earth elements and transition metals from Nd–Fe–B magnets

“…It should be noted that the reducing Fe concentration in the electrolyte, in turn, results in a decrease of current efficiency. 28 Therefore, the current efficiency of the Fe deposition in the electrolyte with the Na 3 Cit concentration from 0.05 to 0.175 mol L −1 , in the long term, is expected to decrease to an Fe leaching efficiency range of 70.9-75.7%, where the Fe leaching from the anode is balanced by the Fe consumption on the cathode. Consequently, a stable concentration of total dissolved Fe (balanced concentration) in the electrolyte will be achieved.…”