About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics for Sustainability: An EPD Symposium in Honor of Kazuki Morita
|
| Presentation Title |
Salt-free Solid Oxide Membrane-Based Electrolysis of Metal Oxides |
| Author(s) |
Uday Bhanu Pal, Haoxuan Yan |
| On-Site Speaker (Planned) |
Uday Bhanu Pal |
| Abstract Scope |
Solid Oxide Membrane (SOM)-based electrolytic processes are developed to address the challenges of transitioning from fossil fuel dependence towards sustainable energy sources for metals production. In this presentation, a new application of the SOM process is presented, where an inert metal with oxygen solubility is used as a reducing medium in conjunction with an oxygen-ion-conducting solid oxide membrane. A proof-of-concept of the process is presented for the production of iron from iron oxide. Iron oxide and non-consumable liquid silver are contained in a one-end closed YSZ SOM tube. Oxygen is pumped out of the liquid silver with an applied electrical potential across the electrodes. The low oxygen chemical potential in the liquid silver reduces the iron oxide. The electrolytic cell is designed to enable easy demonstration of the concept of salt-free electrolysis of iron oxide. This process concept can be applied to synthesize other metals/alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Sustainability, Electrometallurgy, Extraction and Processing |