Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell
The potential application of Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) as a cathode for a proton-conducting solid-oxide fuel cell based on BaCe0.9Y0.1O2.95 (BCY) electrolyte was investigated. Cation diffusion from BCY to BSCF with the formation of a perovskite-type Ba2+-enriched BSCF and a Ba2+-deficient BCY...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier SA
2008
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| Online Access: | http://hdl.handle.net/20.500.11937/30512 |
| _version_ | 1848753110041755648 |
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| author | Lin, Y. Ran, R. Zheng, Y. Shao, Zongping Jin, W. Xu, N. Ahn, J. |
| author_facet | Lin, Y. Ran, R. Zheng, Y. Shao, Zongping Jin, W. Xu, N. Ahn, J. |
| author_sort | Lin, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The potential application of Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) as a cathode for a proton-conducting solid-oxide fuel cell based on BaCe0.9Y0.1O2.95 (BCY) electrolyte was investigated. Cation diffusion from BCY to BSCF with the formation of a perovskite-type Ba2+-enriched BSCF and a Ba2+-deficient BCY at a firing temperature as low as 900 °C was observed, the higher the firing temperature the larger deviation of the A to B ratio from unit for the perovskites. Symmetric cell tests demonstrated the impurity phases did not induce a significant change of the cathodic polarization resistance, however, the ohmic resistance of the cell increased obviously. Anode-supported cells with the electrolyte thickness of ~50 µm were successfully fabricated via a dual-dry pressing process for the single-cell test. Under optimized conditions, a maximum peak power density of ~550 and 100 mW cm-2 was achieved at 700 and 400 °C, respectively, for the cell with the BSCF cathode layer fired from 950 °C. At 500 °C, the ohmic resistance is still the main source of cell resistance. A further reduction in membrane thickness would envisage an increase in power density significantly. © 2008 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T08:19:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-30512 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:19:18Z |
| publishDate | 2008 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-305122017-09-13T15:32:48Z Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell Lin, Y. Ran, R. Zheng, Y. Shao, Zongping Jin, W. Xu, N. Ahn, J. The potential application of Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) as a cathode for a proton-conducting solid-oxide fuel cell based on BaCe0.9Y0.1O2.95 (BCY) electrolyte was investigated. Cation diffusion from BCY to BSCF with the formation of a perovskite-type Ba2+-enriched BSCF and a Ba2+-deficient BCY at a firing temperature as low as 900 °C was observed, the higher the firing temperature the larger deviation of the A to B ratio from unit for the perovskites. Symmetric cell tests demonstrated the impurity phases did not induce a significant change of the cathodic polarization resistance, however, the ohmic resistance of the cell increased obviously. Anode-supported cells with the electrolyte thickness of ~50 µm were successfully fabricated via a dual-dry pressing process for the single-cell test. Under optimized conditions, a maximum peak power density of ~550 and 100 mW cm-2 was achieved at 700 and 400 °C, respectively, for the cell with the BSCF cathode layer fired from 950 °C. At 500 °C, the ohmic resistance is still the main source of cell resistance. A further reduction in membrane thickness would envisage an increase in power density significantly. © 2008 Elsevier B.V. All rights reserved. 2008 Journal Article http://hdl.handle.net/20.500.11937/30512 10.1016/j.jpowsour.2008.02.044 Elsevier SA restricted |
| spellingShingle | Lin, Y. Ran, R. Zheng, Y. Shao, Zongping Jin, W. Xu, N. Ahn, J. Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| title | Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| title_full | Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| title_fullStr | Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| title_full_unstemmed | Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| title_short | Evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| title_sort | evaluation of ba0.5sr0.5co0.8fe0.2o3-d as a potential cathode for an anode-supported proton-conducting solid-oxide fuel cell |
| url | http://hdl.handle.net/20.500.11937/30512 |