Abstract
Core-shell type La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF)-Sm0.2Ce0.8O2-d (SDC) powders are synthesized to achieve a high-performance durable cathode for intermediate temperature solid oxide fuel cells (IT-SOFCs). The SDC core size is controlled so that all core particles are surrounded by the LSCF particles with no unattached spots. Such a core-shell composite cathode develops an ideal microstructure with improved phase contiguity, homogeneity, and maximized triple-phase boundary density. The cathode that involves an SDC core of 500 nm exhibits the lowest interfacial polarization resistance (0.265 Ω cm2 at 650 °C), as well as long-term stability during both thermo-cyclic and electrochemically accelerated tests.
| Original language | English |
|---|---|
| Pages (from-to) | 118-123 |
| Number of pages | 6 |
| Journal | Journal of Power Sources |
| Volume | 195 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 Jan 1 |
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
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Lee, S., Song, H. S., Hyun, S. H., Kim, J., & Moon, J. (2010). LSCF-SDC core-shell high-performance durable composite cathode. Journal of Power Sources, 195(1), 118-123. https://doi.org/10.1016/j.jpowsour.2009.06.079