|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Experiment and Modeling of Aluminum Production by Solid Oxide Membrane Based Electrolysis Process
||Shizhao Su, Xiaofei Guan, Uday Pal
|On-Site Speaker (Planned)
Previous research has confirmed the feasibility of producing aluminum from its oxide at 1473K employing a zero carbon emission, solid oxide based electrolysis process. An improved cell design and materials selection has been applied to the electrolysis cell to optimize its performance and produce higher purity aluminum. Liquid aluminum was enclosed in an open-ended alumina tube placed in the molten fluoride flux and served as the cathode. A TiB2 rod was immersed in the aluminum cathode, which served as the cathode current collector. An inert anode assembly containing YSZ (yttria-stablized zirconia) membrane tube and LSM (La0.8Sr0.2MnO3-δ)-Inconel inert anode current collector was immersed in the molten flux. A general electrochemical polarization model was developed based on the electrochemical measurements carried out during the electrolysis. The membrane stability was studied using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The high purity of the aluminum product was confirmed using inductively coupled plasma spectroscopy.
||Planned: EPD Congress Volume