Electrochemical Characterization of Cu-Induced Interfacial Behavior between a Molten Fe-Cu Alloy and Molten Oxide.

ABSTRACT: The physical separation of miscible solute metals, such as Cu from molten iron, remains a formidable issue in steelmaking. In this work, we focus on a new strategy based on the electrocapillarity phenomenon to achieve selective removal of Cu from Fe-Cu melts. Electrochemical impedance spectroscopy (EIS) was conducted at 1873 K under an Ar atmosphere to investigate the interfacial behavior between Cu-containing molten iron and molten oxide. Increasing the Cu content increased the electric double layer capacitance, indicating greater interfacial charge accumulation. Electrocapillary analysis further showed a marked decrease in the interfacial tension under anodic polarization, especially at higher Cu concentrations, suggesting enhanced ion adsorption dynamics influenced by Cu. These experime

SUBMITTER: Honna S 

PROVIDER: S-EPMC12268405 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature