Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Oxygen selective membranes with enhanced oxygen permeability and CO2 resistance are highly required in sustainable clean energy generation technologies. Here, we present novel, cobalt-free, SrFe1-xTaxO3-d (x=0, 0.025, 0.05, 0.1, 0.2) perovskite...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/27417 |
| _version_ | 1848752258231042048 |
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| author | Zhang, C. Tian, H. Yang, D. Sunarso, J. Liu, J. Liu, Shaomin |
| author_facet | Zhang, C. Tian, H. Yang, D. Sunarso, J. Liu, J. Liu, Shaomin |
| author_sort | Zhang, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Oxygen selective membranes with enhanced oxygen permeability and CO2 resistance are highly required in sustainable clean energy generation technologies. Here, we present novel, cobalt-free, SrFe1-xTaxO3-d (x=0, 0.025, 0.05, 0.1, 0.2) perovskite membranes. Ta-doping induced lattice structure progression from orthorhombic (x=0) to cubic (x=0.05). SrFe0.95Ta0.05O3-d (SFT0.05) showed the highest oxygen flux rates reaching 0.85mLmin-1cm-2 at 950°C on a 1.0mm-thick membrane. Surface decoration can increase the permeation rate further. Ta inclusion within the perovskite lattice of SrFeO3-d (SF) enhanced the CO2 resistance of the membranes significantly as evidenced by the absence of the carbonate functional groups on the FTIR spectrum when exposed to CO2 atmosphere at 850°C. The CO2 resistance of Ta-doped SF compounds correlates with the lower basicity and the higher binding energy for the lattice oxygen. SFT0.05 demonstrated high stability during long-term permeation tests under 10% CO2 atmosphere. |
| first_indexed | 2025-11-14T08:05:46Z |
| format | Journal Article |
| id | curtin-20.500.11937-27417 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:05:46Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-274172017-09-13T15:07:51Z Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes Zhang, C. Tian, H. Yang, D. Sunarso, J. Liu, J. Liu, Shaomin © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Oxygen selective membranes with enhanced oxygen permeability and CO2 resistance are highly required in sustainable clean energy generation technologies. Here, we present novel, cobalt-free, SrFe1-xTaxO3-d (x=0, 0.025, 0.05, 0.1, 0.2) perovskite membranes. Ta-doping induced lattice structure progression from orthorhombic (x=0) to cubic (x=0.05). SrFe0.95Ta0.05O3-d (SFT0.05) showed the highest oxygen flux rates reaching 0.85mLmin-1cm-2 at 950°C on a 1.0mm-thick membrane. Surface decoration can increase the permeation rate further. Ta inclusion within the perovskite lattice of SrFeO3-d (SF) enhanced the CO2 resistance of the membranes significantly as evidenced by the absence of the carbonate functional groups on the FTIR spectrum when exposed to CO2 atmosphere at 850°C. The CO2 resistance of Ta-doped SF compounds correlates with the lower basicity and the higher binding energy for the lattice oxygen. SFT0.05 demonstrated high stability during long-term permeation tests under 10% CO2 atmosphere. 2016 Journal Article http://hdl.handle.net/20.500.11937/27417 10.1002/cssc.201501395 restricted |
| spellingShingle | Zhang, C. Tian, H. Yang, D. Sunarso, J. Liu, J. Liu, Shaomin Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes |
| title | Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes |
| title_full | Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes |
| title_fullStr | Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes |
| title_full_unstemmed | Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes |
| title_short | Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes |
| title_sort | enhanced co2 resistance for robust oxygen separation through tantalum-doped perovskite membranes |
| url | http://hdl.handle.net/20.500.11937/27417 |