| 초록 |
Solid oxide fuel cell (SOFC) operated at high temperature have received considerable attention as a prospective device due to its high efficiency and fuel flexibility. For enhancing the SOFC performance, however, there are some critical issues to be resolved. First, oxygen reduction kinetics and its transport are drastically suppressed at reduced temperature. Second, severe degradation observed in electrode deteriorates long-term stability. To tackle these problems, it is essential to rationally develop the materials of SOFC components. Unfortunately, it is not easy to completely achieve it by depending only on conventional experimental methods. In this talk, we therefore introduce computational approaches to design SOFC electrode materials. Specifically, enhanced electrochemical performance through both the strain-driven chemical stabilization and the metallic nanoparticle exsolution of perovskite electrode surfaces will be discussed. We believe that our computational study will play an important role in improving SOFC performance by guiding or complementing the relevant experiments. |
