Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells
BaCe0.5Zr0.3Y0.2O3-delta (BCZY) based composite electrolyte materials were fabricated with ZnO sintering aid (BCZY-Z). The effects of Na2CO3 modification on sintering behavior, chemical stability and electrochemical performance were systematically investigated. The X-ray diffraction patterns indicat...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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Pergamon
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/36153 |
| _version_ | 1848754690646343680 |
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| author | Li, Y. Guo, R. Wang, C. Liu, Y. Shao, Zongping An, J. Liu, C. |
| author_facet | Li, Y. Guo, R. Wang, C. Liu, Y. Shao, Zongping An, J. Liu, C. |
| author_sort | Li, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | BaCe0.5Zr0.3Y0.2O3-delta (BCZY) based composite electrolyte materials were fabricated with ZnO sintering aid (BCZY-Z). The effects of Na2CO3 modification on sintering behavior, chemical stability and electrochemical performance were systematically investigated. The X-ray diffraction patterns indicate that the specimens with Na2CO3 addition possessed a single perovskite structure after sintering at 1320 degrees Celcius for 2 h. The linear shrinkage of 0.5 mol% Na2CO3-modified BCZY-Z sample (BCZY-Z-C2) was about 17.5%, higher than that without Na2CO3 addition (14.9%). Energy dispersive spectrometer shows that Na and C elements still existed and mainly distributed along the grain boundaries. Reactivities with carbon dioxide and boiling water of BCZY-Z and Na2CO3-modified BCZY-Z samples were also evaluated and good chemical stability was observed for Na2CO3-modified BCZY-Z samples. A conductivity of 7.68 * 10-3 S cm-1 for BCZY-Z-C2 was obtained at 700 ?C in 3% wet hydrogen atmosphere. An anode-supported fuel cell with thin-film BCZY-Z-C2 as electrolyte was fabricated. The fuel cell delivered a peak power density of 302 mW cm2 and interface resistance value of 0.08 Ohm cm2 at 700 degrees Celcius. |
| first_indexed | 2025-11-14T08:44:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-36153 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:44:25Z |
| publishDate | 2013 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-361532017-02-28T01:43:26Z Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells Li, Y. Guo, R. Wang, C. Liu, Y. Shao, Zongping An, J. Liu, C. Chemical stability Sinterability Na2CO3 Proton conductor Electrochemical performance BaCe0.5Zr0.3Y0.2O3-delta (BCZY) based composite electrolyte materials were fabricated with ZnO sintering aid (BCZY-Z). The effects of Na2CO3 modification on sintering behavior, chemical stability and electrochemical performance were systematically investigated. The X-ray diffraction patterns indicate that the specimens with Na2CO3 addition possessed a single perovskite structure after sintering at 1320 degrees Celcius for 2 h. The linear shrinkage of 0.5 mol% Na2CO3-modified BCZY-Z sample (BCZY-Z-C2) was about 17.5%, higher than that without Na2CO3 addition (14.9%). Energy dispersive spectrometer shows that Na and C elements still existed and mainly distributed along the grain boundaries. Reactivities with carbon dioxide and boiling water of BCZY-Z and Na2CO3-modified BCZY-Z samples were also evaluated and good chemical stability was observed for Na2CO3-modified BCZY-Z samples. A conductivity of 7.68 * 10-3 S cm-1 for BCZY-Z-C2 was obtained at 700 ?C in 3% wet hydrogen atmosphere. An anode-supported fuel cell with thin-film BCZY-Z-C2 as electrolyte was fabricated. The fuel cell delivered a peak power density of 302 mW cm2 and interface resistance value of 0.08 Ohm cm2 at 700 degrees Celcius. 2013 Journal Article http://hdl.handle.net/20.500.11937/36153 Pergamon restricted |
| spellingShingle | Chemical stability Sinterability Na2CO3 Proton conductor Electrochemical performance Li, Y. Guo, R. Wang, C. Liu, Y. Shao, Zongping An, J. Liu, C. Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells |
| title | Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells |
| title_full | Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells |
| title_fullStr | Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells |
| title_full_unstemmed | Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells |
| title_short | Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells |
| title_sort | stable and easily sintered bace0.5zr0.3y0.2o3-delta electrolytes using zno and na2co3additives for protonic oxide fuel cells |
| topic | Chemical stability Sinterability Na2CO3 Proton conductor Electrochemical performance |
| url | http://hdl.handle.net/20.500.11937/36153 |