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 |
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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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LSCF-SDC core-shell high-performance durable composite cathode. / Lee, Seungho; Song, Hwa Seob; Hyun, Sang Hoon; Kim, Joosun; Moon, Jooho.
In: Journal of Power Sources, Vol. 195, No. 1, 01.01.2010, p. 118-123.Research output: Contribution to journal › Article
TY - JOUR
T1 - LSCF-SDC core-shell high-performance durable composite cathode
AU - Lee, Seungho
AU - Song, Hwa Seob
AU - Hyun, Sang Hoon
AU - Kim, Joosun
AU - Moon, Jooho
PY - 2010/1/1
Y1 - 2010/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=69349093523&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=69349093523&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2009.06.079
DO - 10.1016/j.jpowsour.2009.06.079
M3 - Article
AN - SCOPUS:69349093523
VL - 195
SP - 118
EP - 123
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1
ER -