抄録
High temperature solid oxide cells (SOCs) are attractive for storage and regeneration of renewable energy by operating reversibly in solid oxide electrolysis cell (SOEC) and solid oxide fuel cell (SOFC) modes. However, the stability of SOCs, particularly the deterioration of the performance of oxygen electrodes in the SOEC operation mode, is the most critical issue in the development of high performance and durable SOCs. In this study, we investigate in detail the electrochemical activity and stability of La0.8Sr0.2MnO3 (LSM) oxygen electrodes in cyclic SOEC and SOFC modes. The results show that the deterioration of LSM oxygen electrodes caused by anodic polarization can be partially or completely recovered by subsequent cathodic polarization. Using in situ assembled LSM electrodes without pre-sintering, we demonstrate that the deteriorated LSM/YSZ interface can be repaired and regenerated by operating the cells under cathodic polarization conditions. This study for the first time establishes the foundation for the development of truly reversible and stable SOCs for hydrogen fuel production and electricity generation in cyclic SOEC and SOFC operation modes.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 31308-31315 |
| ページ数 | 8 |
| ジャーナル | Physical Chemistry Chemical Physics |
| 巻 | 17 |
| 発行部数 | 46 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2015 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
これを引用
Why solid oxide cells can be reversibly operated in solid oxide electrolysis cell and fuel cell modes? / Chen, Kongfa; Liu, Shu Sheng; Ai, Na; Koyama, Michihisa; Jiang, San Ping.
：: Physical Chemistry Chemical Physics, 巻 17, 番号 46, 01.01.2015, p. 31308-31315.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Why solid oxide cells can be reversibly operated in solid oxide electrolysis cell and fuel cell modes?
AU - Chen, Kongfa
AU - Liu, Shu Sheng
AU - Ai, Na
AU - Koyama, Michihisa
AU - Jiang, San Ping
PY - 2015/1/1
Y1 - 2015/1/1
N2 - High temperature solid oxide cells (SOCs) are attractive for storage and regeneration of renewable energy by operating reversibly in solid oxide electrolysis cell (SOEC) and solid oxide fuel cell (SOFC) modes. However, the stability of SOCs, particularly the deterioration of the performance of oxygen electrodes in the SOEC operation mode, is the most critical issue in the development of high performance and durable SOCs. In this study, we investigate in detail the electrochemical activity and stability of La0.8Sr0.2MnO3 (LSM) oxygen electrodes in cyclic SOEC and SOFC modes. The results show that the deterioration of LSM oxygen electrodes caused by anodic polarization can be partially or completely recovered by subsequent cathodic polarization. Using in situ assembled LSM electrodes without pre-sintering, we demonstrate that the deteriorated LSM/YSZ interface can be repaired and regenerated by operating the cells under cathodic polarization conditions. This study for the first time establishes the foundation for the development of truly reversible and stable SOCs for hydrogen fuel production and electricity generation in cyclic SOEC and SOFC operation modes.
AB - High temperature solid oxide cells (SOCs) are attractive for storage and regeneration of renewable energy by operating reversibly in solid oxide electrolysis cell (SOEC) and solid oxide fuel cell (SOFC) modes. However, the stability of SOCs, particularly the deterioration of the performance of oxygen electrodes in the SOEC operation mode, is the most critical issue in the development of high performance and durable SOCs. In this study, we investigate in detail the electrochemical activity and stability of La0.8Sr0.2MnO3 (LSM) oxygen electrodes in cyclic SOEC and SOFC modes. The results show that the deterioration of LSM oxygen electrodes caused by anodic polarization can be partially or completely recovered by subsequent cathodic polarization. Using in situ assembled LSM electrodes without pre-sintering, we demonstrate that the deteriorated LSM/YSZ interface can be repaired and regenerated by operating the cells under cathodic polarization conditions. This study for the first time establishes the foundation for the development of truly reversible and stable SOCs for hydrogen fuel production and electricity generation in cyclic SOEC and SOFC operation modes.
UR - http://www.scopus.com/inward/record.url?scp=84947808710&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947808710&partnerID=8YFLogxK
U2 - 10.1039/c5cp05065k
DO - 10.1039/c5cp05065k
M3 - Article
AN - SCOPUS:84947808710
VL - 17
SP - 31308
EP - 31315
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 46
ER -