Ba1−xPrxCo1−yFeyO3−delta as cathode materials for low temperature solid oxide fuel cells

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DOIResolve DOI: http://doi.org/10.1016/j.electacta.2010.03.053
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TypeArticle
Journal titleElectrochimica Acta
Volume55
Pages47724775; # of pages: 4
SubjectCathode materials; Low temperature solid oxide fuel cells; Electrical conductivities; Interfacial impedance
AbstractBa1−xPrxCo1−yFeyO3−delta (BPCF) perovskite oxides have been synthesized and investigated as cathode materials for low temperature solid oxide fuel cells (LT-SOFCs). Compared with those of Ba0.5Sr0.5Co0.8Fe0.2O3−delta (BSCF) and Sm0.5Sr0.5CoO3 (SSCo) cathode materials, BPCF has a lower polarization resistance at decreased temperatures. In particular, Ba0.5Pr0.5Co0.8Fe0.2O3−delta showed the lowest polarization loss among the different compositions as a cathode material for LT-SOFCs. The area specific resistance (ASR) of Ba0.5Pr0.5Co0.8Fe0.2O3−delta as a cathode material is 0.70 and 0.18 Omega cm2 at 500 ◦C and 550 ◦C, respectively. The maximum power density of the cell BPCF/SDC/Ni–SDC with humidified hydrogen as fuel and air as oxidant reaches 860mWcm−2 at 650 ◦C.
Publication date
LanguageEnglish
AffiliationNRC Institute for Fuel Cell Innovation; National Research Council Canada
Peer reviewedYes
NPARC number16910714
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Record identifierc262939e-c14f-4b82-97ae-d56243d6daa5
Record created2011-02-25
Record modified2016-05-09
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