Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte
A-site cation-ordered PrBaCo2O5+d (PrBC) double perovskite oxide was synthesized and evaluated as the cathode of an intermediate-temperature solid-oxide fuel cell (IT-SOFC) on a samarium-doped ceria (SDC) electrolyte. The phase reaction between PrBC and SDC was weak even at 1100 °C. The oxygen reduc...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Elsevier SA
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/7653 |
| _version_ | 1848745431727603712 |
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| author | Chen, D. Ran, R. Zhang, K. Wang, J. Shao, Zongping |
| author_facet | Chen, D. Ran, R. Zhang, K. Wang, J. Shao, Zongping |
| author_sort | Chen, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A-site cation-ordered PrBaCo2O5+d (PrBC) double perovskite oxide was synthesized and evaluated as the cathode of an intermediate-temperature solid-oxide fuel cell (IT-SOFC) on a samarium-doped ceria (SDC) electrolyte. The phase reaction between PrBC and SDC was weak even at 1100 °C. The oxygen reduction mechanism was investigated by electrochemical impedance spectroscopy characterization. Over the intermediate-temperature range of 450-700 °C, the electrode polarization resistance was mainly contributed from oxygen-ion transfer through the electrode-electrolyte interface and electron charge transfer over the electrode surface. An area-specific resistance as low as ~0.4 O cm2 was measured at 600 °C in air, based on symmetric cell test. A thin-film SDC electrolyte fuel cell with PrBC cathode was fabricated which delivered attractive peak power densities of 620 and 165 mW cm-2 at 600 and 450 °C, respectively. © 2008 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T06:17:15Z |
| format | Journal Article |
| id | curtin-20.500.11937-7653 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:17:15Z |
| publishDate | 2009 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-76532023-08-02T06:39:07Z Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte Chen, D. Ran, R. Zhang, K. Wang, J. Shao, Zongping A-site cation-ordered PrBaCo2O5+d (PrBC) double perovskite oxide was synthesized and evaluated as the cathode of an intermediate-temperature solid-oxide fuel cell (IT-SOFC) on a samarium-doped ceria (SDC) electrolyte. The phase reaction between PrBC and SDC was weak even at 1100 °C. The oxygen reduction mechanism was investigated by electrochemical impedance spectroscopy characterization. Over the intermediate-temperature range of 450-700 °C, the electrode polarization resistance was mainly contributed from oxygen-ion transfer through the electrode-electrolyte interface and electron charge transfer over the electrode surface. An area-specific resistance as low as ~0.4 O cm2 was measured at 600 °C in air, based on symmetric cell test. A thin-film SDC electrolyte fuel cell with PrBC cathode was fabricated which delivered attractive peak power densities of 620 and 165 mW cm-2 at 600 and 450 °C, respectively. © 2008 Elsevier B.V. All rights reserved. 2009 Journal Article http://hdl.handle.net/20.500.11937/7653 10.1016/j.jpowsour.2008.11.045 Elsevier SA restricted |
| spellingShingle | Chen, D. Ran, R. Zhang, K. Wang, J. Shao, Zongping Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte |
| title | Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte |
| title_full | Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte |
| title_fullStr | Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte |
| title_full_unstemmed | Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte |
| title_short | Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+d cathode on samarium-doped ceria electrolyte |
| title_sort | intermediate-temperature electrochemical performance of a polycrystalline prbaco2o5+d cathode on samarium-doped ceria electrolyte |
| url | http://hdl.handle.net/20.500.11937/7653 |