Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties
Abstract: Solid oxide cells (SOCs) are highly efficient and environmentally benign devices that can be used to store renewable electrical energy in the form of fuels such as hydrogen in the solid oxide electrolysis cell mode and regenerate electrical power using stored fuels in the solid oxide fuel...
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| Format: | Journal Article |
| Language: | English |
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SPRINGERNATURE
2020
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| Online Access: | http://purl.org/au-research/grants/arc/DP180100568 http://hdl.handle.net/20.500.11937/90807 |
| _version_ | 1848765433818120192 |
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| author | Chen, K. Jiang, San Ping |
| author_facet | Chen, K. Jiang, San Ping |
| author_sort | Chen, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Abstract: Solid oxide cells (SOCs) are highly efficient and environmentally benign devices that can be used to store renewable electrical energy in the form of fuels such as hydrogen in the solid oxide electrolysis cell mode and regenerate electrical power using stored fuels in the solid oxide fuel cell mode. Despite this, insufficient long-term durability over 5–10 years in terms of lifespan remains a critical issue in the development of reliable SOC technologies in which the surface segregation of cations, particularly strontium (Sr) on oxygen electrodes, plays a critical role in the surface chemistry of oxygen electrodes and is integral to the overall performance and durability of SOCs. Due to this, this review will provide a critical overview of the surface segregation phenomenon, including influential factors, driving forces, reactivity with volatile impurities such as chromium, boron, sulphur and carbon dioxide, interactions at electrode/electrolyte interfaces and influences on the electrochemical performance and stability of SOCs with an emphasis on Sr segregation in widely investigated (La,Sr)MnO3 and (La,Sr)(Co,Fe)O3−δ. In addition, this review will present strategies for the mitigation of Sr surface segregation. Graphic Abstract: [Figure not available: see fulltext.] |
| first_indexed | 2025-11-14T11:35:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-90807 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:35:11Z |
| publishDate | 2020 |
| publisher | SPRINGERNATURE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-908072023-04-24T01:10:59Z Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties Chen, K. Jiang, San Ping Science & Technology Physical Sciences Electrochemistry Solid oxide cells Strontium surface segregation Driving force Electrochemical polarization Oxygen nonstoichiometry modulation Mitigation SR-DOPED LAMNO3 BARIUM CARBONATE NANOPARTICLE HIGH-PERFORMANCE CATHODE A-SITE NONSTOICHIOMETRY PEROVSKITE THIN-FILMS LONG-TERM DURABILITY HIGH-CURRENT DENSITY FUEL-CELL IN-SITU CHROMIUM DEPOSITION Abstract: Solid oxide cells (SOCs) are highly efficient and environmentally benign devices that can be used to store renewable electrical energy in the form of fuels such as hydrogen in the solid oxide electrolysis cell mode and regenerate electrical power using stored fuels in the solid oxide fuel cell mode. Despite this, insufficient long-term durability over 5–10 years in terms of lifespan remains a critical issue in the development of reliable SOC technologies in which the surface segregation of cations, particularly strontium (Sr) on oxygen electrodes, plays a critical role in the surface chemistry of oxygen electrodes and is integral to the overall performance and durability of SOCs. Due to this, this review will provide a critical overview of the surface segregation phenomenon, including influential factors, driving forces, reactivity with volatile impurities such as chromium, boron, sulphur and carbon dioxide, interactions at electrode/electrolyte interfaces and influences on the electrochemical performance and stability of SOCs with an emphasis on Sr segregation in widely investigated (La,Sr)MnO3 and (La,Sr)(Co,Fe)O3−δ. In addition, this review will present strategies for the mitigation of Sr surface segregation. Graphic Abstract: [Figure not available: see fulltext.] 2020 Journal Article http://hdl.handle.net/20.500.11937/90807 10.1007/s41918-020-00078-z English http://purl.org/au-research/grants/arc/DP180100568 http://purl.org/au-research/grants/arc/DP180100731 http://creativecommons.org/licenses/by/4.0/ SPRINGERNATURE fulltext |
| spellingShingle | Science & Technology Physical Sciences Electrochemistry Solid oxide cells Strontium surface segregation Driving force Electrochemical polarization Oxygen nonstoichiometry modulation Mitigation SR-DOPED LAMNO3 BARIUM CARBONATE NANOPARTICLE HIGH-PERFORMANCE CATHODE A-SITE NONSTOICHIOMETRY PEROVSKITE THIN-FILMS LONG-TERM DURABILITY HIGH-CURRENT DENSITY FUEL-CELL IN-SITU CHROMIUM DEPOSITION Chen, K. Jiang, San Ping Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties |
| title | Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties |
| title_full | Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties |
| title_fullStr | Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties |
| title_full_unstemmed | Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties |
| title_short | Surface Segregation in Solid Oxide Cell Oxygen Electrodes: Phenomena, Mitigation Strategies and Electrochemical Properties |
| title_sort | surface segregation in solid oxide cell oxygen electrodes: phenomena, mitigation strategies and electrochemical properties |
| topic | Science & Technology Physical Sciences Electrochemistry Solid oxide cells Strontium surface segregation Driving force Electrochemical polarization Oxygen nonstoichiometry modulation Mitigation SR-DOPED LAMNO3 BARIUM CARBONATE NANOPARTICLE HIGH-PERFORMANCE CATHODE A-SITE NONSTOICHIOMETRY PEROVSKITE THIN-FILMS LONG-TERM DURABILITY HIGH-CURRENT DENSITY FUEL-CELL IN-SITU CHROMIUM DEPOSITION |
| url | http://purl.org/au-research/grants/arc/DP180100568 http://purl.org/au-research/grants/arc/DP180100568 http://hdl.handle.net/20.500.11937/90807 |