Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells
The degradation of solid oxide electrolysis cells (SOECs) is an issue of both scientific and technical importance. In this study, chromium deposition and poisoning at La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF) and La0.8Sr0.2MnO3+d (LSM) oxygen electrodes are studied under SOEC operation conditions at 800 oC. P...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Electrochemical Society Inc.
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/20000 |
| _version_ | 1848750187595431936 |
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| author | Chen, K. Bo, W. Hyodo, J. Ishihara, T. Jiang, San Ping |
| author_facet | Chen, K. Bo, W. Hyodo, J. Ishihara, T. Jiang, San Ping |
| author_sort | Chen, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The degradation of solid oxide electrolysis cells (SOECs) is an issue of both scientific and technical importance. In this study, chromium deposition and poisoning at La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF) and La0.8Sr0.2MnO3+d (LSM) oxygen electrodes are studied under SOEC operation conditions at 800 oC. Performance degradation was observed for the reaction in the presence of Fe-Cr alloy metallic interconnect. The results indicate the deposition of SrCrO4, CrO2.5 and Cr2O3 phases on the surface of LSCF oxygen electrodes and YSZ electrolyte surface and on the LSM electrode inner surface. Cr deposition is closely related to the increased segregation of SrO species under anodic polarization conditions. |
| first_indexed | 2025-11-14T07:32:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-20000 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:32:51Z |
| publishDate | 2015 |
| publisher | Electrochemical Society Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-200002017-09-13T13:51:43Z Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells Chen, K. Bo, W. Hyodo, J. Ishihara, T. Jiang, San Ping The degradation of solid oxide electrolysis cells (SOECs) is an issue of both scientific and technical importance. In this study, chromium deposition and poisoning at La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF) and La0.8Sr0.2MnO3+d (LSM) oxygen electrodes are studied under SOEC operation conditions at 800 oC. Performance degradation was observed for the reaction in the presence of Fe-Cr alloy metallic interconnect. The results indicate the deposition of SrCrO4, CrO2.5 and Cr2O3 phases on the surface of LSCF oxygen electrodes and YSZ electrolyte surface and on the LSM electrode inner surface. Cr deposition is closely related to the increased segregation of SrO species under anodic polarization conditions. 2015 Journal Article http://hdl.handle.net/20.500.11937/20000 10.1149/06801.0793ecst Electrochemical Society Inc. restricted |
| spellingShingle | Chen, K. Bo, W. Hyodo, J. Ishihara, T. Jiang, San Ping Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells |
| title | Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells |
| title_full | Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells |
| title_fullStr | Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells |
| title_full_unstemmed | Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells |
| title_short | Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells |
| title_sort | chromium deposition and poisoning of lscf and lsm oxygen electrodes of solid oxide electrolysis cells |
| url | http://hdl.handle.net/20.500.11937/20000 |