| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
Synchronized High-speed Microscopy and Thermo-analytical Measurement for Sub-mm/sub-ms-scale Cathodic Behavior in Molten Salt Electrolysis |
| Author(s) |
Shungo Natsui, Ryota Shibuya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki |
| On-Site Speaker (Planned) |
Shungo Natsui |
| Abstract Scope |
The electrochemically deposited liquid Ca or Li in the molten chloride works as powerful reductant for TiO2 or other metal oxides, however the electrolysis efficiency should be enough high if much lower oxygen level in metal phase was required. A detailed understanding of the cathodic behavior is necessary to control and optimize the electrolysis. In this study, to clarify the morphological and thermal characteristics of a cathodic electrode in a molten CaCl2 or LiCl melt at 1173 K, we simultaneously performed electrochemical measurements and thermal measurements using an ultrafine thermocouple inserted inside a Mo electrode. Changes in the electrode interface were recorded at 500-μs intervals using a synchronized high-speed digital camera. It was possible to trace the change in the electrodeposition pattern in each potential quickly and sensitively, which was difficult to determine in only the electrochemical potential-current response. |
| Proceedings Inclusion? |
Planned: |