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Meeting 2027 TMS Annual Meeting & Exhibition
Symposium Computational Thermodynamics and Kinetics
Presentation Title Thermodynamic Analysis of Ti-Fe-Mn Alloy Preparation via the Molten Salt Electrodeoxygenation Process
Author(s) Pengpeng Feng, Jinglong Liang, Hui Li
On-Site Speaker (Planned) Pengpeng Feng
Abstract Scope Ti-Fe-Mn alloys possess excellent hydrogen storage properties and are widely used in fields such as fuel cells. In this study, TiO₂、Fe₂O₃ and MnO₂ were used as cathode materials, and a thermodynamic analysis was conducted on the process of preparing Ti-Fe-Mn alloys via the molten salt electro-deoxidation method within the temperature range of 873 K to 1273 K.As O2-ions are removed, they accumulate at the solid–liquid interface and react with Ca2+ ions in the molten salt to form the intermediate phases CaFe₂O₄，CaFe₃O₅， and CaTiO₃。Under electrochemical driving forces, the reduction pathway for the manganese component is（MnO₂ → Mn₂O₃→Mn₃O₄→MnO→Mn）;the reduction pathway for the iron component is（Fe₂O₃/CaFe₂O₄→Fe₃O₄/CaFe₃O₅ →FeO → Fe）;the reduction pathway for the titanium component is（TiO₂/CaTiO₃ →Ti₃O₅ →Ti₂O₃→TiO → Ti），ultimately forming a Ti-Fe-Mn alloy.
Proceedings Inclusion? Planned:
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