CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures
In this work, an electrochemical oxygen pump ceramic membrane based on Sm0.2Ce0.8O1.9 (SDC) electrolyte and La0.6Sr0.4FeO3−δ (LSF) electrode was prepared and characterized by XRD, SEM, and EDX. The area specific resistance of the membranes was measured by impedance spectroscopy. The oxygen electrica...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing, Inc.
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/12210 |
| _version_ | 1848748014835859456 |
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| author | Zhang, K. Meng, B. Tan, X. Liu, Lihong Wang, Shaobin Liu, Shaomin |
| author_facet | Zhang, K. Meng, B. Tan, X. Liu, Lihong Wang, Shaobin Liu, Shaomin |
| author_sort | Zhang, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this work, an electrochemical oxygen pump ceramic membrane based on Sm0.2Ce0.8O1.9 (SDC) electrolyte and La0.6Sr0.4FeO3−δ (LSF) electrode was prepared and characterized by XRD, SEM, and EDX. The area specific resistance of the membranes was measured by impedance spectroscopy. The oxygen electrical permeation behavior of SDC/LSF membrane was investigated under different operating conditions. In consistent with the theoretical prediction from Faraday law, the oxygen flux value observed is closely correlated in quantity with the applied current density. The permeation (or Faraday) efficiency of SDC/LSF membrane could reach above 95% at lower temperatures (600°C–700°C). At 700°C, the oxygen flux through SDC/LSF membrane with 3000 mA/cm2 current density could reach ~9.97 mL/cm2/min. In addition, the prepared SDC/LSF membrane electrical performance was also tested under the presence of CO2. It was found that SDC/LSF membrane has excellent structure and permeation stability against CO2 gas, reflecting its potential applications like oxyfuel technologies and hydrocarbon oxidations. |
| first_indexed | 2025-11-14T06:58:19Z |
| format | Journal Article |
| id | curtin-20.500.11937-12210 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:58:19Z |
| publishDate | 2014 |
| publisher | Wiley-Blackwell Publishing, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-122102017-09-13T14:59:51Z CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures Zhang, K. Meng, B. Tan, X. Liu, Lihong Wang, Shaobin Liu, Shaomin In this work, an electrochemical oxygen pump ceramic membrane based on Sm0.2Ce0.8O1.9 (SDC) electrolyte and La0.6Sr0.4FeO3−δ (LSF) electrode was prepared and characterized by XRD, SEM, and EDX. The area specific resistance of the membranes was measured by impedance spectroscopy. The oxygen electrical permeation behavior of SDC/LSF membrane was investigated under different operating conditions. In consistent with the theoretical prediction from Faraday law, the oxygen flux value observed is closely correlated in quantity with the applied current density. The permeation (or Faraday) efficiency of SDC/LSF membrane could reach above 95% at lower temperatures (600°C–700°C). At 700°C, the oxygen flux through SDC/LSF membrane with 3000 mA/cm2 current density could reach ~9.97 mL/cm2/min. In addition, the prepared SDC/LSF membrane electrical performance was also tested under the presence of CO2. It was found that SDC/LSF membrane has excellent structure and permeation stability against CO2 gas, reflecting its potential applications like oxyfuel technologies and hydrocarbon oxidations. 2014 Journal Article http://hdl.handle.net/20.500.11937/12210 10.1111/jace.12690 Wiley-Blackwell Publishing, Inc. restricted |
| spellingShingle | Zhang, K. Meng, B. Tan, X. Liu, Lihong Wang, Shaobin Liu, Shaomin CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| title | CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| title_full | CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| title_fullStr | CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| title_full_unstemmed | CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| title_short | CO2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| title_sort | co2-tolerant ceramic membrane driven by electrical current for oxygen production at intermediate temperatures |
| url | http://hdl.handle.net/20.500.11937/12210 |