An XPS study of the oxidation of reduced ceria-lanthana nanocrystals

Simple item page
dc.contributor.authorFleming, Peter G.
dc.contributor.authorRamirez, S.
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorMorris, Michael A.
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2020-02-26T16:24:05Z
dc.date.available2020-02-26T16:24:05Z
dc.date.issued2011-04-30
dc.date.updated2018-09-20T11:29:58Z
dc.description.abstractDetailed X-ray photoelectron spectroscopy (XPS) studies on the oxidation of an extensively cleaned, reduced ceria–lanthana solid solution (12.5 mol% La to Ce) was performed. Uptake of oxygen during oxidation followed a logarithmic dependence on exposure. Differential charging during oxidation suggests that the oxidation process is diffusion limited. No evidence for surface 3+ cerium states in the fully oxidised samples, which are anion defect free within the limits of experimental accuracy, was found. The data suggest that there is no evidence for the inherent stability of anion vacancies (associated with Ce3+ sites) at the surface of these nanocrystals.en
dc.description.sponsorshipScience Foundation Ireland ((BioNanoInteract Strategic research Cluster Grant (07/SRC/ B1155); (Overhead Investment Plan))en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationFleming, P., Ramirez, S., Holmes, J. D. and Morris, M. A. (2011) 'An XPS study of the oxidation of reduced ceria–lanthana nanocrystals', Chemical Physics Letters, 509(1), pp. 51-57. doi: 10.1016/j.cplett.2011.04.090en
dc.identifier.doi10.1016/j.cplett.2011.04.090en
dc.identifier.endpage57en
dc.identifier.issn0009-2614
dc.identifier.journaltitleChemical Physics Lettersen
dc.identifier.startpage51en
dc.identifier.urihttps://hdl.handle.net/10468/9701
dc.identifier.volume509en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0009261411005343
dc.rights© 2011 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectOxidationen
dc.subjectCeriumen
dc.subjectCerium compoundsen
dc.subjectLanthanum oxidesen
dc.subjectNanocrystalsen
dc.subjectPhotoelectron spectroscopyen
dc.subjectX ray photoelectron spectroscopyen
dc.subjectAnion vacancyen
dc.subjectDefect-freeen
dc.subjectDifferential chargingen
dc.subjectDiffusion limiteden
dc.subjectLogarithmic dependenceen
dc.subjectOxidation processen
dc.subjectX-ray photoelectron spectroscopy studiesen
dc.subjectXPSen
dc.titleAn XPS study of the oxidation of reduced ceria-lanthana nanocrystalsen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
7096.pdf
Size:
2.25 MB
Format:
Adobe Portable Document Format
Description:
Accepted version
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Chemistry - Journal Articles
Tyndall National Institute - Journal Articles