|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Structural Characterization of LaxSr1-xCoO3 (LSC 113) / (LaxSr1-x)2CoO4 (LSC 214) Hetero-Interface Cathode for Intermediate Temperature Solid Oxide Fuel Cells
||Dogancan Sari, , Tayfur Ozturk
|On-Site Speaker (Planned)
The solid oxide fuel cells have been studied extensively in last few decades due to their efficient energy conversion abilities. The modification and development of new cathode materials is crucial to increase the performance and life time of SOFCs. Oxygen reduction reaction and diffusion of oxygen ions through the cathode are two consecutive processes taking place in the cathode. Low kinetics of these processes are the major part of performance loss. In order to decrease the cost, increase the performance and life time of SOFCs, the kinetics of cathode related steps should be increased. Recently, the hetero-interface structures (like LSC 113 – LSC 214) have shown promising enhancement (1000–10000 times faster) at 500⁰C while the reasons are not clearly solved. In this study, the reasons of this enhancement are investigated with the help of in-situ x-ray analysis at 500C and detailed TEM analysis for LSC 113/214 hetero-interface structure.
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