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Tuning the high temperature properties of PrSrCoO4 cathode with Cu2+ dopant for intermediate temperature solid oxide fuel cells

hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorLIU, Jian-Wei
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.authorSUN, Li-Ping
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorHUO, Li-Hua
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorZHAO, Hui
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOURCADE, Sébastien
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGRENIER, Jean-Claude
dc.date.issued2020-10
dc.identifier.issn0960-1481
dc.description.abstractEnPrSrCo1-xCuxO4+δ (x = 0.0, 0.1, 0.3, 0.5) are synthesized by solid-state reaction method. The effects of Cu2+ doping on electrical conductivity, thermal expansion, oxygen diffusion properties and oxygen reduction reaction (ORR) activity are investigated. PrSrCo1-xCuxO4+δ oxides crystallize in a single-phase tetragonal structure with I4/mmm space group. Partial substitution Co3+ by Cu2+ results the increase of electrical conductivity and decrease of thermal expansion coefficient. Introducing Cu2+ promotes the formation of interstitial oxygen, accelerates the kinetics of oxygen transport, and significantly improves the electrocatalytic activity of ORR. The lowest area specific resistance (ASR) value of 0.08 Ω cm2 is obtained for the PrSrCo0.7Cu0.3O4+δ cathode at 700 °C in air. The ORR mechanism study demonstrates that Cu-doping (30%) promotes the charge transfer process. The reaction rate control step on PrSrCo0.7Cu0.3O4+δ cathode is the dissociation and surface diffusion process of adsorbed molecular oxygen.
dc.language.isoen
dc.publisherElsevier
dc.title.enTuning the high temperature properties of PrSrCoO4 cathode with Cu2+ dopant for intermediate temperature solid oxide fuel cells
dc.typeArticle de revue
dc.identifier.doi10.1016/j.renene.2020.06.032
dc.subject.halChimie/Matériaux
bordeaux.journalRenewable Energy
bordeaux.page486-493
bordeaux.volume159
bordeaux.peerReviewedoui
hal.identifierhal-02885979
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02885979v1
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