Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells
dc.contributor.author | Li, Y. | |
dc.contributor.author | Guo, R. | |
dc.contributor.author | Wang, C. | |
dc.contributor.author | Liu, Y. | |
dc.contributor.author | Shao, Zongping | |
dc.contributor.author | An, J. | |
dc.contributor.author | Liu, C. | |
dc.date.accessioned | 2017-01-30T13:54:03Z | |
dc.date.available | 2017-01-30T13:54:03Z | |
dc.date.created | 2014-10-08T01:14:47Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Li, Y. and Guo, R. and Wang, C. and Liu, Y. and Shao, Z. and An, J. and Liu, C. 2013. Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells. Electrochimica Acta. 95: pp. 95-101. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/36153 | |
dc.description.abstract |
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. | |
dc.publisher | Pergamon | |
dc.subject | Chemical stability | |
dc.subject | Sinterability | |
dc.subject | Na2CO3 | |
dc.subject | Proton conductor | |
dc.subject | Electrochemical performance | |
dc.title | Stable and easily sintered BaCe0.5Zr0.3Y0.2O3-delta electrolytes using ZnO and Na2CO3additives for protonic oxide fuel cells | |
dc.type | Journal Article | |
dcterms.source.volume | 95 | |
dcterms.source.startPage | 95 | |
dcterms.source.endPage | 101 | |
dcterms.source.issn | 0013-4686 | |
dcterms.source.title | Electrochimica Acta | |
curtin.accessStatus | Fulltext not available |