Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells
Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) cathodes of solid oxide fuel cells are investigated. BSCF cathode shows an excellent and stable performance in the absence of metallic interconnects. However, in the presence of a chromia-forming metallic interconnect performance o...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Electrochemical Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/44841 |
| _version_ | 1848757117061693440 |
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| author | Kim, Y. Chen, X. Jiang, San Ping Bae, J. |
| author_facet | Kim, Y. Chen, X. Jiang, San Ping Bae, J. |
| author_sort | Kim, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) cathodes of solid oxide fuel cells are investigated. BSCF cathode shows an excellent and stable performance in the absence of metallic interconnects. However, in the presence of a chromia-forming metallic interconnect performance of the BSCF cathodes degrades quickly. Chromium deposition was observed on the BSCF cathode surface after 1200 min polarization at 900 and 800C. The Cr2O3/SrO and Cr2O3/BaCO3 oxide couple study indicates that SrCrO4, BaCrO4, and BaCr2O4 start to form at temperatures above 500C. The results indicate that BSCF cathode is not chromium-tolerant despite its superior activity for the O2 reduction reaction. |
| first_indexed | 2025-11-14T09:22:59Z |
| format | Journal Article |
| id | curtin-20.500.11937-44841 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:22:59Z |
| publishDate | 2011 |
| publisher | Electrochemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-448412017-02-28T01:38:08Z Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells Kim, Y. Chen, X. Jiang, San Ping Bae, J. Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) cathodes of solid oxide fuel cells are investigated. BSCF cathode shows an excellent and stable performance in the absence of metallic interconnects. However, in the presence of a chromia-forming metallic interconnect performance of the BSCF cathodes degrades quickly. Chromium deposition was observed on the BSCF cathode surface after 1200 min polarization at 900 and 800C. The Cr2O3/SrO and Cr2O3/BaCO3 oxide couple study indicates that SrCrO4, BaCrO4, and BaCr2O4 start to form at temperatures above 500C. The results indicate that BSCF cathode is not chromium-tolerant despite its superior activity for the O2 reduction reaction. 2011 Journal Article http://hdl.handle.net/20.500.11937/44841 Electrochemical Society restricted |
| spellingShingle | Kim, Y. Chen, X. Jiang, San Ping Bae, J. Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells |
| title | Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells |
| title_full | Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells |
| title_fullStr | Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells |
| title_full_unstemmed | Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells |
| title_short | Chromium deposition and poisoning at Ba0.5Sr0.5Co0.8Fe0.2O3 cathode of solid oxide fuel cells |
| title_sort | chromium deposition and poisoning at ba0.5sr0.5co0.8fe0.2o3 cathode of solid oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/44841 |