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dc.contributor.authorWei, B.
dc.contributor.authorChen, K.
dc.contributor.authorWang, C.
dc.contributor.authorLü, Z.
dc.contributor.authorJiang, San Ping
dc.identifier.citationWei, B. and Chen, K. and Wang, C. and Lü, Z. and Jiang, S.P. 2015. Performance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells. Electrochimica Acta. 174: pp. 327-331

Chromium deposition and poisoning at double-perovskite type SmBaCo2O5+δ (SBCO) cathodes of solid oxide fuel cells (SOFCs) are studied. The electrochemical activity of SBCO cathodes for the O2 reduction reaction degrades quickly in the presence of a chromia-forming metallic interconnect, indicating that SBCO is not a Cr-tolerant and resistance cathode. The results indicate that the deposition of Cr species is essentially induced by the segregated BaO on the SBCO surface, leading to the formation of BaCrO4. The deposition and formation of BaCrO4 phase accelerates the abstraction of Ba from the SBCO, resulting to the decomposition of SBCO double perovskite structure and the loss of electrochemical activity for the O2 reduction reaction.

dc.publisherElsevier Ltd
dc.titlePerformance degradation of SmBaCo2O5+δ cathode induced by chromium deposition for solid oxide fuel cells
dc.typeJournal Article
dcterms.source.titleElectrochimica Acta
curtin.departmentFuels and Energy Technology Institute
curtin.accessStatusFulltext not available

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