Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells
The chemical compatibility of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) electrodes with ceria based electrolytes is investigated under solid oxide fuel cell (SOFC) operation conditions. BSCF reacts with both Ce0.9Gd0.1O1.95 (GDC) and Ce0.8Sm0.2O1.95 (SDC) at 900°C, forming barium cerate (BaxCe1-yMyO3, where M...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
The Electrochemical Society, Inc
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/35663 |
| _version_ | 1848754556497821696 |
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| author | Yung, H. Jian, L. Jiang, San Ping |
| author_facet | Yung, H. Jian, L. Jiang, San Ping |
| author_sort | Yung, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The chemical compatibility of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) electrodes with ceria based electrolytes is investigated under solid oxide fuel cell (SOFC) operation conditions. BSCF reacts with both Ce0.9Gd0.1O1.95 (GDC) and Ce0.8Sm0.2O1.95 (SDC) at 900°C, forming barium cerate (BaxCe1-yMyO3, where M= Gd or Sm). Under cathodic current passage, the interaction between BSCF and ceria-based electrolyte takes place at temperatures as low as 700°C, forming Ba-containing particles (probably barium cerate) at the electrode/electrolyte interface. The results show that cathodic polarization promotes the chemical reaction between BSCF and ceria-based electrolyte. The accelerated reaction between BSCF and ceria is most likely related to the Ba segregation under influence of polarization and/or temperature. |
| first_indexed | 2025-11-14T08:42:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-35663 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:42:17Z |
| publishDate | 2012 |
| publisher | The Electrochemical Society, Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-356632017-09-13T16:08:23Z Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells Yung, H. Jian, L. Jiang, San Ping solid oxide fuel cells The chemical compatibility of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) electrodes with ceria based electrolytes is investigated under solid oxide fuel cell (SOFC) operation conditions. BSCF reacts with both Ce0.9Gd0.1O1.95 (GDC) and Ce0.8Sm0.2O1.95 (SDC) at 900°C, forming barium cerate (BaxCe1-yMyO3, where M= Gd or Sm). Under cathodic current passage, the interaction between BSCF and ceria-based electrolyte takes place at temperatures as low as 700°C, forming Ba-containing particles (probably barium cerate) at the electrode/electrolyte interface. The results show that cathodic polarization promotes the chemical reaction between BSCF and ceria-based electrolyte. The accelerated reaction between BSCF and ceria is most likely related to the Ba segregation under influence of polarization and/or temperature. 2012 Journal Article http://hdl.handle.net/20.500.11937/35663 10.1149/2.026212jes The Electrochemical Society, Inc restricted |
| spellingShingle | solid oxide fuel cells Yung, H. Jian, L. Jiang, San Ping Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells |
| title | Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells |
| title_full | Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells |
| title_fullStr | Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells |
| title_full_unstemmed | Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells |
| title_short | Polarization Promoted Chemical Reaction between Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode and Ceria Based Electrolytes of Solid Oxide Fuel Cells |
| title_sort | polarization promoted chemical reaction between ba0.5sr0.5co0.8fe0.2o3-δ cathode and ceria based electrolytes of solid oxide fuel cells |
| topic | solid oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/35663 |