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dc.contributor.authorChen, Yonghong
dc.contributor.authorGu, Qingwen
dc.contributor.authorTian, Dong
dc.contributor.authorDing, Yanzhi
dc.contributor.authorLu, Xiaoyong
dc.contributor.authorYu, Weili
dc.contributor.authorIsimjan, Tayirjan T.
dc.contributor.authorBin, Lin
dc.date.accessioned2015-08-04T07:26:34Z
dc.date.available2015-08-04T07:26:34Z
dc.date.issued2014-08
dc.identifier.citationChen, Y., Gu, Q., Tian, D., Ding, Y., Lu, X., Yu, W., … Lin, B. (2014). (La, Pr)0.8Sr0.2FeO3−–Sm0.2Ce0.8O2− composite cathode for proton-conducting solid oxide fuel cells. International Journal of Hydrogen Energy, 39(25), 13665–13670. doi:10.1016/j.ijhydene.2014.04.042
dc.identifier.issn03603199
dc.identifier.doi10.1016/j.ijhydene.2014.04.042
dc.identifier.urihttp://hdl.handle.net/10754/564968
dc.description.abstractMixed rare-earth (La, Pr)0.8Sr0.2FeO 3-δ-Sm0.2Ce0.8O2-δ (LPSF-SDC) composite cathode was investigated for proton-conducting solid oxide fuel cells based on protonic BaZr0.1Ce0.7Y 0.2O3-δ (BZCY) electrolyte. The powders of La 0.8-xPrxSr0.2FeO3-δ (x = 0, 0.2, 0.4, 0.6), Sm0.2Ce0.8O2-δ (SDC) and BaZr0.1Ce0.7Y0.2O3-δ (BZCY) were synthesized by a citric acid-nitrates self-propagating combustion method. The XRD results indicate that La0.8-xPrxSr 0.2FeO3-δ samples calcined at 950 °C exhibit perovskite structure and there are no interactions between LPSF0.2 and SDC at 1100 °C. The average thermal expansion coefficient (TEC) of LPSF0.2-SDC, BZCY and NiO-BZCY is 12.50 × 10-6 K-1, 13.51 × 10-6 K-1 and 13.47 × 10-6 K -1, respectively, which can provide good thermal compatibility between electrodes and electrolyte. An anode-supported single cell of NiO-BZCY|BZCY|LPSF0.2-SDC was successfully fabricated and operated from 700 °C to 550 °C with humidified hydrogen (∼3% H2O) as fuel and the static air as oxidant. A high maximum power density of 488 mW cm -2, an open-circuit potential of 0.95 V, and a low electrode polarization resistance of 0.071 Ω cm2 were achieved at 700 °C. Preliminary results demonstrate that LPSF0.2-SDC composite is a promising cathode material for proton-conducting solid oxide fuel cells. © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipThe authors would like to thank the financial support from Chinese Natural Science Foundation on contract Grant (No. 51102107 and No. 51202080), Anhui Science and Technology Project (No. 1206c0805038) and Huainan Science and Technology Project (No. 2010A03203).
dc.publisherElsevier BV
dc.subjectComposite cathode
dc.subjectElectrochemical performance
dc.subjectPolarization
dc.subjectProton-conducting solid oxide fuel cells
dc.title(La, Pr)0.8Sr0.2FeO3-δ-Sm 0.2Ce0.8O2-δ composite cathode for proton-conducting solid oxide fuel cells
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalInternational Journal of Hydrogen Energy
dc.contributor.institutionAnhui Key Laboratory of Low Temperature Co-fired Materials, Department of Chemistry, Huainan Normal University, Huainan, Anhui, 232001, China
dc.contributor.institutionCAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China (USTC), Hefei 230026, China
kaust.personYu, Weili
kaust.personIsimjan, Tayirjan T.
kaust.personBin, Lin


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