Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells
Combined chromium and sulfur poisoning for La0.8Sr0.2MnO3-δ (LSM)cathodes of solid oxide fuel cells (SOFCs)were investigated with cathodic current of 200 mA cm−2 under 800 °C for 22 h. After polarization in chromium and sulfur at 800 °C for 22 h, polarization and ohmic resistance for LSM electrodes...
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| Format: | Journal Article |
| Language: | English |
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PERGAMON-ELSEVIER SCIENCE LTD
2019
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| Online Access: | http://purl.org/au-research/grants/arc/DP180100731 http://hdl.handle.net/20.500.11937/90812 |
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| author | Wang, Cheng Cheng Darvish, S. Chen, K. Hou, B. Zhang, Q. Tan, Z. Zhong, Y. Jiang, San Ping |
| author_facet | Wang, Cheng Cheng Darvish, S. Chen, K. Hou, B. Zhang, Q. Tan, Z. Zhong, Y. Jiang, San Ping |
| author_sort | Wang, Cheng Cheng |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Combined chromium and sulfur poisoning for La0.8Sr0.2MnO3-δ (LSM)cathodes of solid oxide fuel cells (SOFCs)were investigated with cathodic current of 200 mA cm−2 under 800 °C for 22 h. After polarization in chromium and sulfur at 800 °C for 22 h, polarization and ohmic resistance for LSM electrodes were 5.1 Ω cm2 and 7.62 Ω cm2, which were larger than values of LSM electrodes after chromium deposition only and sulfur deposition only. EDS, XPS and XRD results showed chromium and sulfur deposition occurred especially in bulk of the electrode, forming SrCrO4 and SrSO4. Compared with chromium deposition only, sulfur deposition only, combined chromium and sulfur deposition was not random and the degradation phenomenon of chromium and sulfur poisoning was much more severe. The combined chromium and sulfur deposition of LSM electrodes was induced by interaction among CrO, SO2 and segregated SrO from LSM electrode. Thermodynamic predictions have been carried out utilizing CALPHAD approach, which were found in agreement with observed experimental results. |
| first_indexed | 2025-11-14T11:35:12Z |
| format | Journal Article |
| id | curtin-20.500.11937-90812 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:35:12Z |
| publishDate | 2019 |
| publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-908122023-04-20T01:43:32Z Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells Wang, Cheng Cheng Darvish, S. Chen, K. Hou, B. Zhang, Q. Tan, Z. Zhong, Y. Jiang, San Ping Science & Technology Physical Sciences Electrochemistry Solid oxide fuel cells LSM electrodes Chromium and sulfur deposition CHROMIUM DEPOSITION O-2 REDUCTION SO2 ELECTRODES SURFACE Combined chromium and sulfur poisoning for La0.8Sr0.2MnO3-δ (LSM)cathodes of solid oxide fuel cells (SOFCs)were investigated with cathodic current of 200 mA cm−2 under 800 °C for 22 h. After polarization in chromium and sulfur at 800 °C for 22 h, polarization and ohmic resistance for LSM electrodes were 5.1 Ω cm2 and 7.62 Ω cm2, which were larger than values of LSM electrodes after chromium deposition only and sulfur deposition only. EDS, XPS and XRD results showed chromium and sulfur deposition occurred especially in bulk of the electrode, forming SrCrO4 and SrSO4. Compared with chromium deposition only, sulfur deposition only, combined chromium and sulfur deposition was not random and the degradation phenomenon of chromium and sulfur poisoning was much more severe. The combined chromium and sulfur deposition of LSM electrodes was induced by interaction among CrO, SO2 and segregated SrO from LSM electrode. Thermodynamic predictions have been carried out utilizing CALPHAD approach, which were found in agreement with observed experimental results. 2019 Journal Article http://hdl.handle.net/20.500.11937/90812 10.1016/j.electacta.2019.04.116 English http://purl.org/au-research/grants/arc/DP180100731 http://creativecommons.org/licenses/by-nc-nd/4.0/ PERGAMON-ELSEVIER SCIENCE LTD fulltext |
| spellingShingle | Science & Technology Physical Sciences Electrochemistry Solid oxide fuel cells LSM electrodes Chromium and sulfur deposition CHROMIUM DEPOSITION O-2 REDUCTION SO2 ELECTRODES SURFACE Wang, Cheng Cheng Darvish, S. Chen, K. Hou, B. Zhang, Q. Tan, Z. Zhong, Y. Jiang, San Ping Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells |
| title | Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells |
| title_full | Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells |
| title_fullStr | Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells |
| title_full_unstemmed | Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells |
| title_short | Combined Cr and S poisoning of La0.8Sr0.2MnO3-δ (LSM) cathode of solid oxide fuel cells |
| title_sort | combined cr and s poisoning of la0.8sr0.2mno3-δ (lsm) cathode of solid oxide fuel cells |
| topic | Science & Technology Physical Sciences Electrochemistry Solid oxide fuel cells LSM electrodes Chromium and sulfur deposition CHROMIUM DEPOSITION O-2 REDUCTION SO2 ELECTRODES SURFACE |
| url | http://purl.org/au-research/grants/arc/DP180100731 http://hdl.handle.net/20.500.11937/90812 |