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hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorLI, Qiang
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorZENG, Xu
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorSUN, Liping
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorZHAO, Hui
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorHUO, Lihua
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGRENIER, Jean-Claude
dc.date.issued2012
dc.identifier.issn0360-3199
dc.description.abstractEnK2NiF4-type structure oxides La2Cu1−xCoxO4 (x = 0.1, 0.2, 0.3) are synthesized and evaluated as cathode materials for intermediate temperature solid oxide fuel cells (IT-SOFCs). The materials are characterized by XRD, SEM and electrochemical impedance spectrum (EIS), respectively. The results show that no reaction occurs between La2Cu1−xCoxO4 electrode and Ce0.9Gd0.1O1.95 (CGO) electrolyte at 1000 °C. The electrode forms good contact with the electrolyte after sintering at 800 °C for 4 h in air. The electrode properties of La2Cu1−xCoxO4 are studied under various temperatures and oxygen partial pressures. The optimum composition of La2Cu0.8Co0.2O4 results in 0.51 Ω cm2 polarization resistance (Rp) at 700 °C in air. The rate limiting step for oxygen reduction reaction (ORR) is the charge transfer process. La2Cu0.8Co0.2O4 cathode exhibits the lowest overpotential of about 50 mV at a current density of 48 mA cm−2 at 700 °C in air.
dc.language.isoen
dc.publisherElsevier
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ijhydene.2011.11.014
dc.subject.halChimie/Matériaux
bordeaux.journalInternational Journal of Hydrogen Energy
bordeaux.page2552-2558
bordeaux.volume37
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-00763831
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00763831v1
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