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dc.contributor.authorGao, C
dc.contributor.authorLiu, Y
dc.contributor.authorXi, K
dc.contributor.authorJiao, S
dc.contributor.authorTomov, RI
dc.contributor.authorKumar, RV
dc.date.accessioned2017-09-05T11:08:51Z
dc.date.available2017-09-05T11:08:51Z
dc.date.issued2017-08-20
dc.identifier.issn0013-4686
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/267034
dc.description.abstractLSCF/CGO composite cathodes decorated with small amount (less than 1 wt%) of nano CuO particles has been synthesized by infiltration technique. The area specific resistance (ASR) of the LSCF/CGO at 500 °C has been significantly reduced by the CuO infiltration from 15.5 Ω cm 2 and 0.62 Ω cm 2 to 3.9 Ω cm 2 and 0.32 Ω cm 2 at 500 °C and 650 °C respectively. The redox reaction of Cu 2+ /Cu 1+ at the interface of CuO and LSCF/CGO has been assigned as the main reason for the improvement. Lattice parameter change of LSCF at 500 °C has been detected by High Temperature XRD, indicating partial diffusion of Cu 2+ into the lattice of LSCF, and formation of a new Cu containing compound. The performance stability of the infiltrated samples has been investigated by aging at 500 °C and 650 °C for 150 hours in stagnant air. A slight degradation of the catalytic property was observed during the aging process. The degradation may be attributed to three factors: (i) the coarsening of CuO nanoparticles, (ii) segregation of the SrO due the lattice change and (iii) instability of the new Cu 2+ contained compounds.
dc.description.sponsorshipThe authors wish to acknowledge EPSRC grant “Tailoring of microstructural evolution in impregnated SOFC electrodes” for the financial support.
dc.publisherElsevier BV
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectinfiltration
dc.subjectsolid oxide fuel cell
dc.subjectCuO
dc.subjectdegradation
dc.titleImprove the catalytic property of La$_{0.6}$Sr$_{0.4}$Co$_{0.2}$Fe$_{0.8}$O$_{3}$/Ce$_{0.9}$Gd$_{0.1}$O$_{2}$ (LSCF/CGO) cathodes with CuO nanoparticles infiltration
dc.typeArticle
prism.endingPage155
prism.publicationDate2017
prism.publicationNameElectrochimica Acta
prism.startingPage148
prism.volume246
dc.identifier.doi10.17863/CAM.13064
dcterms.dateAccepted2017-05-21
rioxxterms.versionofrecord10.1016/j.electacta.2017.05.138
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.licenseref.startdate2017-08-20
dc.contributor.orcidTomov, Rumen [0000-0001-9144-216X]
dc.contributor.orcidKumar, Ramachandran [0000-0001-9223-2332]
dc.identifier.eissn1873-3859
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEPSRC (via University of St Andrews) (YEP206)
cam.issuedOnline2017-05-24


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International