Barium- and strontium-enriched (Ba0.5Sr0.5)1+xCo0.8Fe0.2O3-d oxides as high-performance cathodes for intermediate-temperature solid-oxide fuel cells
dc.contributor.author | Zhou, W. | |
dc.contributor.author | Ran, R. | |
dc.contributor.author | Shao, Zongping | |
dc.contributor.author | Zhuang, W. | |
dc.contributor.author | Jia, J. | |
dc.contributor.author | Gu, H. | |
dc.contributor.author | Jin, W. | |
dc.contributor.author | Xu, N. | |
dc.date.accessioned | 2017-01-30T12:09:29Z | |
dc.date.available | 2017-01-30T12:09:29Z | |
dc.date.created | 2016-09-12T08:36:54Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Zhou, W. and Ran, R. and Shao, Z. and Zhuang, W. and Jia, J. and Gu, H. and Jin, W. et al. 2008. Barium- and strontium-enriched (Ba0.5Sr0.5)1+xCo0.8Fe0.2O3-d oxides as high-performance cathodes for intermediate-temperature solid-oxide fuel cells. Acta Materialia. 56 (12): pp. 2687-2698. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/18709 | |
dc.identifier.doi | 10.1016/j.actamat.2008.02.002 | |
dc.description.abstract |
(Ba0.5Sr0.5)1+xCo0.8Fe0.2O3-d, or BSCF(1 + x), (0 = x = 0.3) oxides were synthesized and investigated as cathodes for intermediate-temperature solid-oxide fuel cells. The A-site cation excess in BSCF(1 + x) resulted in a lattice expansion and the creation of more active sites for oxygen reduction reaction due to the lowered valence states of the B-site ions and the increased oxygen vacancy concentration, which improved the oxygen adsorption process. On the other hand, the A-site excess could also result in higher resistances for oxygen adsorption (due to the formation of BaO and/or SrO impurities), and oxygen-ion transfer (by facilitating the solid-phase reaction between the cathode and the electrolyte). By taking all these factors into account, we found BSCF1.03 to be the optimal composition, which lead to a peak power density of 1026.2 ± 12.7 mW cm-2 at 650 °C for a single cell. © 2008 Acta Materialia Inc. | |
dc.publisher | Pergamon Press | |
dc.title | Barium- and strontium-enriched (Ba0.5Sr0.5)1+xCo0.8Fe0.2O3-d oxides as high-performance cathodes for intermediate-temperature solid-oxide fuel cells | |
dc.type | Journal Article | |
dcterms.source.volume | 56 | |
dcterms.source.number | 12 | |
dcterms.source.startPage | 2687 | |
dcterms.source.endPage | 2698 | |
dcterms.source.issn | 1359-6454 | |
dcterms.source.title | Acta Materialia | |
curtin.department | Department of Chemical Engineering | |
curtin.accessStatus | Fulltext not available |
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