| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Temperature Electrochemistry V
|
| Presentation Title |
Relative Performance of Platinum, Iridium, and Ruthenium as Oxygen-Evolving Anodes during the Electrolytic Reduction of Uranium Oxide in Molten LiCl-Li2O |
| Author(s) |
Steven D. Herrmann, Prabhat Tripathy, James King, Guoping Cao, Kevin Tolman |
| On-Site Speaker (Planned) |
Steven D. Herrmann |
| Abstract Scope |
The performance of platinum, iridium, and ruthenium as oxygen-evolving anodes during the electrolytic reduction of uranium oxide in molten salt was investigated. Separate experiments were conducted with platinum-iridium, iridium-ruthenium, and platinum-ruthenium anode pairs, each of which was coupled to a common cathode with independent power supply units. The cathode, a permeable steel basket loaded with uranium oxide particulate, was suspended in a pool of LiCl – 1 wt% Li2O at 650 °C. A pair of 3-mm diameter by 100-mm long anode rods were suspended in the salt pool adjacent to the cathode basket. The power supply units were operated concurrently in a controlled potential mode to effect uranium oxide reduction at the cathode and oxygen gas formation at the anodes. Anode and cathode potentials and currents were plotted for each run to compare anode performance. Post-run anodes were subjected to dimensional and microscopic analyses to assess their relative robustness. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Nuclear Materials, Pyrometallurgy |