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dc.contributor.authorZhou, W.
dc.contributor.authorShao, Zongping
dc.contributor.authorLiang, F.
dc.contributor.authorChen, Z.
dc.contributor.authorZhu, Z.
dc.contributor.authorJin, W.
dc.contributor.authorXu, N.
dc.identifier.citationZhou, W. and Shao, Z. and Liang, F. and Chen, Z. and Zhu, Z. and Jin, W. and Xu, N. 2011. A new cathode for solid oxide fuel cells capable of in situ electrochemical regeneration. Journal of Materials Chemistry. 21 (39): pp. 15343-15351.

As highly efficient energy conversion devices with the capability for power/heat co-generation and fuel flexibility, solid-oxide fuel cells (SOFCs) have received considerable attention recently as a keystone of the future energy economy. Nowadays, lack of a proper cathode with high performance at intermediate temperature (IT) has become the main obstacle in realizing this fascinating technology. Here we present (La0.8Sr0.2) 0.95Ag0.05MnO3-d as a novel CO 2 tolerant cathode of IT-SOFCs, which shows silver intercalation/de-intercalation capability. Under cathodic polarization, silver can be extracted from perovskite lattice to form a 5-15 nm silver modified A-site cation deficient (La0.8Sr0.2) 0.95MnO3-d electrode with superior electrocatalytic activity and improved stability. Any performance degradation due to silver sintering can be easily in situ restored by re-intercalating silver into the perovskite lattice under anodic polarization. Through electrochemically adjusting the oxidation state and location of silver, we introduce a way for the development of high-performance silver-modified cathode for IT-SOFCs, which may contribute significantly to a sustainable future. © 2011 The Royal Society of Chemistry.

dc.titleA new cathode for solid oxide fuel cells capable of in situ electrochemical regeneration
dc.typeJournal Article
dcterms.source.titleJournal of Materials Chemistry
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available

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