A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation
© 2018 Curtin University and John Wiley & Sons, Ltd. Dual-phase membrane is an attractive concept that combines the advantages of two different phases into single membrane matrix. The recently reported significant enhancement of oxygen surface kinetics on the La0.8Sr0.2CoO3-d (LSC)/(La0.5Sr0.5...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
John Wiley & Sons, Ltd
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/72864 |
| _version_ | 1848762861781778432 |
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| author | Han, N. Wang, W. Zhang, S. Sunarso, J. Zhu, Z. Liu, Shaomin |
| author_facet | Han, N. Wang, W. Zhang, S. Sunarso, J. Zhu, Z. Liu, Shaomin |
| author_sort | Han, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018 Curtin University and John Wiley & Sons, Ltd. Dual-phase membrane is an attractive concept that combines the advantages of two different phases into single membrane matrix. The recently reported significant enhancement of oxygen surface kinetics on the La0.8Sr0.2CoO3-d (LSC)/(La0.5Sr0.5)2CoO4+d (LSC214) hetero-interface due to the formation of fast oxygen transport paths along hetero-interface is adopted into dual-phase membrane to achieve enhanced oxygen permeability. The 1300°C sintered LSC/LSC214 (4:1 weight ratio) hollow fiber displayed a maximum oxygen flux of 3.35 ml·min-1·cm-2 at 900°C and 200 ml min-1 helium sweep gas flow rate, which represents up to 80% enhancement relative to that of the 1300°C sintered LSC hollow fiber at the same experimental condition. Such enhancement is enabled by the enlargement of triple phase boundaries to larger areas across the membrane surface for dual-phase case as confirmed by the significantly lower area specific resistance for LSC/LSC214|Ce0.8Sm0.2O1.9 (SDC)|LSC/LSC214 relative to LSC|SDC|LSC symmetrical cell between 600°C and 800°C. This nominal dual-phase LSC/LSC214 hollow fiber also showed very stable fluxes of 3.3 and 2.3 ml·min-1·cm-2 during 300-hr permeation test at 900°C and 850°C, respectively. |
| first_indexed | 2025-11-14T10:54:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-72864 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:54:18Z |
| publishDate | 2018 |
| publisher | John Wiley & Sons, Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-728642023-08-02T06:39:12Z A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation Han, N. Wang, W. Zhang, S. Sunarso, J. Zhu, Z. Liu, Shaomin © 2018 Curtin University and John Wiley & Sons, Ltd. Dual-phase membrane is an attractive concept that combines the advantages of two different phases into single membrane matrix. The recently reported significant enhancement of oxygen surface kinetics on the La0.8Sr0.2CoO3-d (LSC)/(La0.5Sr0.5)2CoO4+d (LSC214) hetero-interface due to the formation of fast oxygen transport paths along hetero-interface is adopted into dual-phase membrane to achieve enhanced oxygen permeability. The 1300°C sintered LSC/LSC214 (4:1 weight ratio) hollow fiber displayed a maximum oxygen flux of 3.35 ml·min-1·cm-2 at 900°C and 200 ml min-1 helium sweep gas flow rate, which represents up to 80% enhancement relative to that of the 1300°C sintered LSC hollow fiber at the same experimental condition. Such enhancement is enabled by the enlargement of triple phase boundaries to larger areas across the membrane surface for dual-phase case as confirmed by the significantly lower area specific resistance for LSC/LSC214|Ce0.8Sm0.2O1.9 (SDC)|LSC/LSC214 relative to LSC|SDC|LSC symmetrical cell between 600°C and 800°C. This nominal dual-phase LSC/LSC214 hollow fiber also showed very stable fluxes of 3.3 and 2.3 ml·min-1·cm-2 during 300-hr permeation test at 900°C and 850°C, respectively. 2018 Journal Article http://hdl.handle.net/20.500.11937/72864 10.1002/apj.2239 John Wiley & Sons, Ltd restricted |
| spellingShingle | Han, N. Wang, W. Zhang, S. Sunarso, J. Zhu, Z. Liu, Shaomin A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation |
| title | A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation |
| title_full | A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation |
| title_fullStr | A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation |
| title_full_unstemmed | A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation |
| title_short | A novel heterogeneous La0.8Sr0.2CoO3-d/(La0.5Sr0.5)2CoO4+d dual-phase membrane for oxygen separation |
| title_sort | novel heterogeneous la0.8sr0.2coo3-d/(la0.5sr0.5)2coo4+d dual-phase membrane for oxygen separation |
| url | http://hdl.handle.net/20.500.11937/72864 |