A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells
Ba0.6Sr0.4Co0.9Nb0.1O3-d (BSCN), originated from SrCo0.9Nb0.1O3-d (SCN), is investigated as a cathode material in a protonic solid-oxide fuel cell (SOFC-H+) with a BaZr0.1Ce0.7Y0.2O3 (BZCY) electrolyte. The surface-exchange and bulk-diffusion properties, phase reaction with the electrolyte, electroc...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier SA
2010
|
| Online Access: | http://hdl.handle.net/20.500.11937/22314 |
| _version_ | 1848750835956187136 |
|---|---|
| author | Lin, Y. Ran, R. Chen, D. Shao, Zongping |
| author_facet | Lin, Y. Ran, R. Chen, D. Shao, Zongping |
| author_sort | Lin, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Ba0.6Sr0.4Co0.9Nb0.1O3-d (BSCN), originated from SrCo0.9Nb0.1O3-d (SCN), is investigated as a cathode material in a protonic solid-oxide fuel cell (SOFC-H+) with a BaZr0.1Ce0.7Y0.2O3 (BZCY) electrolyte. The surface-exchange and bulk-diffusion properties, phase reaction with the electrolyte, electrochemical activity for oxygen reduction, and performance in the real fuel cell condition of SCN and BSCN electrodes are comparatively studied by conductivity relaxation, XRD, EIS and I-V polarization characterizations. Much better performance is found for BSCN than SCN. Furthermore, water has a positive effect on oxygen reduction over BSCN while it has the opposite effect with SCN. A peak power density of 630 mW cm-2 at 700 °C is achieved for a thin-film BZCY electrolyte cell with a BSCN cathode compared to only 287 mW cm-2 for a similar cell with an SCN cathode. The results highly recommend BSCN as a potential cathode material for protonic SOFCs. Crown Copyright © 2010. |
| first_indexed | 2025-11-14T07:43:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-22314 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:43:09Z |
| publishDate | 2010 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-223142017-09-13T13:54:25Z A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells Lin, Y. Ran, R. Chen, D. Shao, Zongping Ba0.6Sr0.4Co0.9Nb0.1O3-d (BSCN), originated from SrCo0.9Nb0.1O3-d (SCN), is investigated as a cathode material in a protonic solid-oxide fuel cell (SOFC-H+) with a BaZr0.1Ce0.7Y0.2O3 (BZCY) electrolyte. The surface-exchange and bulk-diffusion properties, phase reaction with the electrolyte, electrochemical activity for oxygen reduction, and performance in the real fuel cell condition of SCN and BSCN electrodes are comparatively studied by conductivity relaxation, XRD, EIS and I-V polarization characterizations. Much better performance is found for BSCN than SCN. Furthermore, water has a positive effect on oxygen reduction over BSCN while it has the opposite effect with SCN. A peak power density of 630 mW cm-2 at 700 °C is achieved for a thin-film BZCY electrolyte cell with a BSCN cathode compared to only 287 mW cm-2 for a similar cell with an SCN cathode. The results highly recommend BSCN as a potential cathode material for protonic SOFCs. Crown Copyright © 2010. 2010 Journal Article http://hdl.handle.net/20.500.11937/22314 10.1016/j.jpowsour.2010.02.062 Elsevier SA restricted |
| spellingShingle | Lin, Y. Ran, R. Chen, D. Shao, Zongping A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells |
| title | A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells |
| title_full | A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells |
| title_fullStr | A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells |
| title_full_unstemmed | A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells |
| title_short | A novel Ba0.6Sr0.4Co0.9Nb0.1O3-d cathode for protonic solid-oxide fuel cells |
| title_sort | novel ba0.6sr0.4co0.9nb0.1o3-d cathode for protonic solid-oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/22314 |