抄録
Mixed ionic-electronic conductors are materials which conduct both oxide ions and electronic charge carriers (electron and/or hole) simultaneously. Perovskite-type oxides (ABO3) with valence-variable cations and oxide ion vacancies such as La1-xSrxCo1-yFe yO3-δ (LSCFs) are representative and most intensively studied mixed conductors. LSCFs and their relatives desorb and absorb a large amount of oxygen reversibly from and into the crystal lattice without changing their fundamental crystal structures. By full use of the reversible oxygen sorption-desorption and mixed conductive properties, oxygen separation from, for example, air with 100% selectivity is possible at temperatures above 300 °C. High temperature oxygen separation is very important technology to recover waste heat from high-temperature facilities and can contribute the improvement of energy efficiencies. Oxygen separation is also a key technology for oxy-fuel combustion, because its exhaust consists, in principle, of H2O and CO2 which is ready for CCS (Carbon dioxide Capture and Storage). In this review article, two types of oxygen separation technologies by using mixed ionic-electronic conductors are outlined; membrane separation at high temperature range (usually above 800 °C) and temperature/pressure swing separation at medium to high temperature range (for example, 300-800 7deg;C). After describing basic aspects of mixed conductive perovskite-type oxides, current research status and future challenges will be reviewed.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 871-879 |
| ページ数 | 9 |
| ジャーナル | Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy |
| 巻 | 89 |
| 発行部数 | 9 |
| 出版物ステータス | 出版済み - 9 1 2010 |
| 外部発表 | Yes |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Energy Engineering and Power Technology
- Energy(all)
これを引用
Oxygen separation by mixed conductive perovskite-type oxides. / Watanabe, Ken; Teraoka, Yasutake.
：: Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy, 巻 89, 番号 9, 01.09.2010, p. 871-879.研究成果: ジャーナルへの寄稿 › 評論記事
}
TY - JOUR
T1 - Oxygen separation by mixed conductive perovskite-type oxides
AU - Watanabe, Ken
AU - Teraoka, Yasutake
PY - 2010/9/1
Y1 - 2010/9/1
N2 - Mixed ionic-electronic conductors are materials which conduct both oxide ions and electronic charge carriers (electron and/or hole) simultaneously. Perovskite-type oxides (ABO3) with valence-variable cations and oxide ion vacancies such as La1-xSrxCo1-yFe yO3-δ (LSCFs) are representative and most intensively studied mixed conductors. LSCFs and their relatives desorb and absorb a large amount of oxygen reversibly from and into the crystal lattice without changing their fundamental crystal structures. By full use of the reversible oxygen sorption-desorption and mixed conductive properties, oxygen separation from, for example, air with 100% selectivity is possible at temperatures above 300 °C. High temperature oxygen separation is very important technology to recover waste heat from high-temperature facilities and can contribute the improvement of energy efficiencies. Oxygen separation is also a key technology for oxy-fuel combustion, because its exhaust consists, in principle, of H2O and CO2 which is ready for CCS (Carbon dioxide Capture and Storage). In this review article, two types of oxygen separation technologies by using mixed ionic-electronic conductors are outlined; membrane separation at high temperature range (usually above 800 °C) and temperature/pressure swing separation at medium to high temperature range (for example, 300-800 7deg;C). After describing basic aspects of mixed conductive perovskite-type oxides, current research status and future challenges will be reviewed.
AB - Mixed ionic-electronic conductors are materials which conduct both oxide ions and electronic charge carriers (electron and/or hole) simultaneously. Perovskite-type oxides (ABO3) with valence-variable cations and oxide ion vacancies such as La1-xSrxCo1-yFe yO3-δ (LSCFs) are representative and most intensively studied mixed conductors. LSCFs and their relatives desorb and absorb a large amount of oxygen reversibly from and into the crystal lattice without changing their fundamental crystal structures. By full use of the reversible oxygen sorption-desorption and mixed conductive properties, oxygen separation from, for example, air with 100% selectivity is possible at temperatures above 300 °C. High temperature oxygen separation is very important technology to recover waste heat from high-temperature facilities and can contribute the improvement of energy efficiencies. Oxygen separation is also a key technology for oxy-fuel combustion, because its exhaust consists, in principle, of H2O and CO2 which is ready for CCS (Carbon dioxide Capture and Storage). In this review article, two types of oxygen separation technologies by using mixed ionic-electronic conductors are outlined; membrane separation at high temperature range (usually above 800 °C) and temperature/pressure swing separation at medium to high temperature range (for example, 300-800 7deg;C). After describing basic aspects of mixed conductive perovskite-type oxides, current research status and future challenges will be reviewed.
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M3 - Review article
VL - 89
SP - 871
EP - 879
JO - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan
JF - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan
SN - 0916-8753
IS - 9
ER -