Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells
Chromium deposition and poisoning at double-perovskite type SmBaCo2O5+δ (SBCO) cathodes of solid oxide fuel cells (SOFCs) are studied. The electrochemical activity of SBCO cathodes for the O2 reduction reaction degrades quickly in the presence of a chromia-forming metallic interconnect, indicating t...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Elsevier Ltd
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/21292 |
| _version_ | 1848750549525069824 |
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| author | Wei, B. Chen, K. Wang, C. Lü, Z. Jiang, San Ping |
| author_facet | Wei, B. Chen, K. Wang, C. Lü, Z. Jiang, San Ping |
| author_sort | Wei, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Chromium deposition and poisoning at double-perovskite type SmBaCo2O5+δ (SBCO) cathodes of solid oxide fuel cells (SOFCs) are studied. The electrochemical activity of SBCO cathodes for the O2 reduction reaction degrades quickly in the presence of a chromia-forming metallic interconnect, indicating that SBCO is not a Cr-tolerant and resistance cathode. The results indicate that the deposition of Cr species is essentially induced by the segregated BaO on the SBCO surface, leading to the formation of BaCrO4. The deposition and formation of BaCrO4 phase accelerates the abstraction of Ba from the SBCO, resulting to the decomposition of SBCO double perovskite structure and the loss of electrochemical activity for the O2 reduction reaction. |
| first_indexed | 2025-11-14T07:38:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-21292 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:38:36Z |
| publishDate | 2015 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-212922018-12-14T00:59:17Z Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells Wei, B. Chen, K. Wang, C. Lü, Z. Jiang, San Ping Chromium deposition and poisoning at double-perovskite type SmBaCo2O5+δ (SBCO) cathodes of solid oxide fuel cells (SOFCs) are studied. The electrochemical activity of SBCO cathodes for the O2 reduction reaction degrades quickly in the presence of a chromia-forming metallic interconnect, indicating that SBCO is not a Cr-tolerant and resistance cathode. The results indicate that the deposition of Cr species is essentially induced by the segregated BaO on the SBCO surface, leading to the formation of BaCrO4. The deposition and formation of BaCrO4 phase accelerates the abstraction of Ba from the SBCO, resulting to the decomposition of SBCO double perovskite structure and the loss of electrochemical activity for the O2 reduction reaction. 2015 Journal Article http://hdl.handle.net/20.500.11937/21292 10.1016/j.electacta.2015.06.019 Elsevier Ltd restricted |
| spellingShingle | Wei, B. Chen, K. Wang, C. Lü, Z. Jiang, San Ping Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| title | Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| title_full | Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| title_fullStr | Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| title_full_unstemmed | Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| title_short | Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| title_sort | performance degradation of smbaco2o5+δ cathode induced by chromium deposition for solid oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/21292 |