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dc.contributor.authorTomov, Rumen
dc.contributor.authorMitchel-Williams, Thomas B
dc.contributor.authorVenezia, Eleonora
dc.contributor.authorKawalec, Michal
dc.contributor.authorKrauz, Mariusz
dc.contributor.authorKumar, Ramachandran
dc.contributor.authorGlowacki, Bartek
dc.date.accessioned2021-11-22T14:44:04Z
dc.date.available2021-11-22T14:44:04Z
dc.date.issued2021-11-16
dc.identifier.issn2079-4991
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/330870
dc.description.abstractSingle-step inkjet printing infiltration with doped ceria Ce0.9Ye0.1O1.95 (YDC) and cobalt oxide (CoxOy) precursor inks was performed in order to modify the properties of the doped ceria interlayer in commercial (50 × 50 × 0.5 mm3 size) anode-supported SOFCs. The penetration of the inks throughout the La0.8Sr0.2Co0.5Fe0.5O3-δ porous cathode to the Gd0.1Ce0.9O2 (GDC) interlayer was achieved by optimisation of the inks' rheology jetting parameters. The low-temperature calcination (750 °C) resulted in densification of the Gd-doped ceria porous interlayer as well as decoration of the cathode scaffold with nanoparticles (~20-50 nm in size). The I-V testing in pure hydrogen showed a maximum power density gain of ~20% at 700 °C and ~97% at 800 °C for the infiltrated cells. The latter effect was largely assigned to the improvement in the interfacial Ohmic resistance due to the densification of the interlayer. The EIS study of the polarisation losses of the reference and infiltrated cells revealed a reduction in the activation polarisations losses at 700 °C due to the nano-decoration of the La0.8Sr0.2Co0.5Fe0.5O3-δ scaffold surface. Such was not the case at 800 °C, where the drop in Ohmic losses was dominant. This work demonstrated that single-step inkjet printing infiltration, a non-disruptive, low-cost technique, can produce significant and scalable performance enhancements in commercial anode-supported SOFCs.
dc.languageen
dc.publisherMDPI AG
dc.subjectsolid oxide fuel cells
dc.subjectinkjet printing
dc.subjectinfiltration
dc.subjectdoped ceria
dc.subjectcobalt oxide
dc.titleInkjet Printing Infiltration of the Doped Ceria Interlayer in Commercial Anode-Supported SOFCs.
dc.typeArticle
dc.date.updated2021-11-22T14:44:03Z
prism.issueIdentifier11
prism.publicationNameNanomaterials (Basel)
prism.volume11
dc.identifier.doi10.17863/CAM.78313
dcterms.dateAccepted2021-11-08
rioxxterms.versionofrecord10.3390/nano11113095
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidTomov, Rumen [0000-0001-9144-216X]
dc.contributor.orcidMitchel-Williams, Thomas B [0000-0002-2177-6591]
dc.contributor.orcidVenezia, Eleonora [0000-0002-2802-4894]
dc.contributor.orcidKumar, Ramachandran [0000-0001-9223-2332]
dc.identifier.eissn2079-4991
cam.issuedOnline2021-11-16


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