Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions
We propose a new way to develop high-performance cathodes for IT-SOFCs by utilizing the interfacial reactions. SrCoOx was selected as the starting electrode material, which took a vacancy-ordered 2H BaNiO3-type structure and showed negligible ionic conductivity and low electrical conductivity. Phase...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Inc.
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/19350 |
| _version_ | 1848750007861116928 |
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| author | Zhou, Y. An, B. Guo, Y. Ran, R. Shao, Zongping |
| author_facet | Zhou, Y. An, B. Guo, Y. Ran, R. Shao, Zongping |
| author_sort | Zhou, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We propose a new way to develop high-performance cathodes for IT-SOFCs by utilizing the interfacial reactions. SrCoOx was selected as the starting electrode material, which took a vacancy-ordered 2H BaNiO3-type structure and showed negligible ionic conductivity and low electrical conductivity. Phase reactions between SrCoOx and Sm0.2Ce0.8O1.9 happened at 900 °C or higher, resulting in the incorporation of Sm and Ce into its lattice structure. This promoted the phase transition to a cubic perovskite and led to substantial increase in the electrical conductivity and oxygen mobility of the electrode. By utilizing such phase reactions, the SrCoOx + Sm0.2Ce0.8O1.9 composite was developed into a high performance electrode with a low area specific resistance of 0.08 O cm-2 at 650 °C. An anode-supported cell with such electrode delivered a peak power density of 795 mW cm-2 at 600 °C. © 2009 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T07:29:59Z |
| format | Journal Article |
| id | curtin-20.500.11937-19350 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:29:59Z |
| publishDate | 2009 |
| publisher | Elsevier Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-193502017-09-13T13:46:47Z Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions Zhou, Y. An, B. Guo, Y. Ran, R. Shao, Zongping We propose a new way to develop high-performance cathodes for IT-SOFCs by utilizing the interfacial reactions. SrCoOx was selected as the starting electrode material, which took a vacancy-ordered 2H BaNiO3-type structure and showed negligible ionic conductivity and low electrical conductivity. Phase reactions between SrCoOx and Sm0.2Ce0.8O1.9 happened at 900 °C or higher, resulting in the incorporation of Sm and Ce into its lattice structure. This promoted the phase transition to a cubic perovskite and led to substantial increase in the electrical conductivity and oxygen mobility of the electrode. By utilizing such phase reactions, the SrCoOx + Sm0.2Ce0.8O1.9 composite was developed into a high performance electrode with a low area specific resistance of 0.08 O cm-2 at 650 °C. An anode-supported cell with such electrode delivered a peak power density of 795 mW cm-2 at 600 °C. © 2009 Elsevier B.V. All rights reserved. 2009 Journal Article http://hdl.handle.net/20.500.11937/19350 10.1016/j.elecom.2009.09.034 Elsevier Inc. restricted |
| spellingShingle | Zhou, Y. An, B. Guo, Y. Ran, R. Shao, Zongping Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions |
| title | Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions |
| title_full | Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions |
| title_fullStr | Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions |
| title_full_unstemmed | Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions |
| title_short | Development of high-performance cathodes for IT-SOFCs through beneficial interfacial reactions |
| title_sort | development of high-performance cathodes for it-sofcs through beneficial interfacial reactions |
| url | http://hdl.handle.net/20.500.11937/19350 |