Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions
The electrochemical performance and stability of (La,Sr)MnO3–Y2O3–ZrO2 (LSM-YSZ) composite oxygen electrodes is studied in detail under solid oxide electrolysis cells (SOECs) operation conditions. The introduction of YSZ electrolyte phase to form an LSM-YSZ composite oxygen electrode substantially e...
| Main Authors: | , , |
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| Format: | Journal Article |
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Elsevier Ltd
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/42058 |
| _version_ | 1848756314292879360 |
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| author | Chen, Kongfa Ai, Na Jiang, San Ping |
| author_facet | Chen, Kongfa Ai, Na Jiang, San Ping |
| author_sort | Chen, Kongfa |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The electrochemical performance and stability of (La,Sr)MnO3–Y2O3–ZrO2 (LSM-YSZ) composite oxygen electrodes is studied in detail under solid oxide electrolysis cells (SOECs) operation conditions. The introduction of YSZ electrolyte phase to form an LSM-YSZ composite oxygen electrode substantially enhances the electrocatalytic activity for oxygen oxidation reaction. However, the composite electrode degrades significantly under SOEC mode tested at 500 mA cm−2 and 800 °C. The electrode degradation is characterized by deteriorated surface diffusion and oxygen ion exchange and migration processes. The degradation in electrode performance and stability is most likely associated with the breakup of LSM grains and formation of LSM nanoparticles at the electrode/electrolyte interface, and the formation of nano-patterns on YSZ electrolyte surface under the electrolysis polarization conditions. The results indicate that it is important to minimize the direct contact of LSM particles and YSZ electrolyte at the interface in order to prevent the detrimental effect of the LSM nanoparticle formation on the performance and stability of LSM-based composite oxygen electrodes. |
| first_indexed | 2025-11-14T09:10:14Z |
| format | Journal Article |
| id | curtin-20.500.11937-42058 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:10:14Z |
| publishDate | 2012 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-420582017-09-13T15:58:41Z Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions Chen, Kongfa Ai, Na Jiang, San Ping electrode Degradation LSM-YSZ composite oxygen Nanoparticles formation Solid oxide electrolysis cells Delamination The electrochemical performance and stability of (La,Sr)MnO3–Y2O3–ZrO2 (LSM-YSZ) composite oxygen electrodes is studied in detail under solid oxide electrolysis cells (SOECs) operation conditions. The introduction of YSZ electrolyte phase to form an LSM-YSZ composite oxygen electrode substantially enhances the electrocatalytic activity for oxygen oxidation reaction. However, the composite electrode degrades significantly under SOEC mode tested at 500 mA cm−2 and 800 °C. The electrode degradation is characterized by deteriorated surface diffusion and oxygen ion exchange and migration processes. The degradation in electrode performance and stability is most likely associated with the breakup of LSM grains and formation of LSM nanoparticles at the electrode/electrolyte interface, and the formation of nano-patterns on YSZ electrolyte surface under the electrolysis polarization conditions. The results indicate that it is important to minimize the direct contact of LSM particles and YSZ electrolyte at the interface in order to prevent the detrimental effect of the LSM nanoparticle formation on the performance and stability of LSM-based composite oxygen electrodes. 2012 Journal Article http://hdl.handle.net/20.500.11937/42058 10.1016/j.ijhydene.2012.04.073 Elsevier Ltd restricted |
| spellingShingle | electrode Degradation LSM-YSZ composite oxygen Nanoparticles formation Solid oxide electrolysis cells Delamination Chen, Kongfa Ai, Na Jiang, San Ping Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| title | Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| title_full | Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| title_fullStr | Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| title_full_unstemmed | Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| title_short | Performance and stability of (La,Sr)MnO3-Y2O3-ZrO2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| title_sort | performance and stability of (la,sr)mno3-y2o3-zro2 composite oxygen electrodes under solid oxide electrolysis cell operation conditions |
| topic | electrode Degradation LSM-YSZ composite oxygen Nanoparticles formation Solid oxide electrolysis cells Delamination |
| url | http://hdl.handle.net/20.500.11937/42058 |