|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Energy Conversion with Emphasis on SOFC
||Enhanced Performance of Doped Ceria Electrolyte by the Addition of Barium Carbonate in Solid Oxide Fuel Cells
||Tao Hong, Devin Harkins, Kyle Brinkman
|On-Site Speaker (Planned)
Barium carbonate was added to doped ceria, Gd0.2Ce0.8O2-δ (GDC) electrolyte to improve the electrochemical performance in solid oxide fuel cells. With the addition of 5 wt% BaCO3, GDC reacts with BaCO3 to form BaCe0.8Gd0.2O3-δ (BCG) at 1000oC. In this new Ba-GDC electrolyte, BCG phase improves the sintering activity of GDC to get larger grain size and higher density. When La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) was employed as the cathode, the polarization resistance of LSCF had been reduced to half of original value. For example, at 600 and 700 oC, the resistance was reduced from 2.49 and 0.23Ωcm2 to 1.21 and 0.12Ωcm2, respectively. Compared to conventional research on cathode materials and structure, this method provides a convenient way to improve cathode performance by modifying the electrolyte.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)