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

Show simple item record

dc.contributor.author Fleming, Peter G.
dc.contributor.author Ramirez, S.
dc.contributor.author Holmes, Justin D.
dc.contributor.author Morris, Michael A.
dc.date.accessioned 2020-02-26T16:24:05Z
dc.date.available 2020-02-26T16:24:05Z
dc.date.issued 2011-04-30
dc.identifier.citation Fleming, 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.2011.04.090 en
dc.identifier.volume 509 en
dc.identifier.startpage 51 en
dc.identifier.endpage 57 en
dc.identifier.issn 0009-2614
dc.identifier.uri http://hdl.handle.net/10468/9701
dc.identifier.doi 10.1016/j.cplett.2011.04.090 en
dc.description.abstract Detailed 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.sponsorship Science Foundation Ireland ((BioNanoInteract Strategic research Cluster Grant (07/SRC/ B1155); (Overhead Investment Plan)) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://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.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Oxidation en
dc.subject Cerium en
dc.subject Cerium compounds en
dc.subject Lanthanum oxides en
dc.subject Nanocrystals en
dc.subject Photoelectron spectroscopy en
dc.subject X ray photoelectron spectroscopy en
dc.subject Anion vacancy en
dc.subject Defect-free en
dc.subject Differential charging en
dc.subject Diffusion limited en
dc.subject Logarithmic dependence en
dc.subject Oxidation process en
dc.subject X-ray photoelectron spectroscopy studies en
dc.subject XPS en
dc.title An XPS study of the oxidation of reduced ceria-lanthana nanocrystals en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Justin D. Holmes, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: j.holmes@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-09-20T11:29:58Z
dc.description.version Accepted Version en
dc.internal.rssid 85334958
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Chemical Physics Letters en
dc.internal.copyrightchecked No !!CORA!!
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress j.holmes@ucc.ie en
dc.internal.IRISemailaddress m.morris@ucc.ie en


Files in this item

This item appears in the following Collection(s)

Show simple item record

© 2011 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence. Except where otherwise noted, this item's license is described as © 2011 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence.
This website uses cookies. By using this website, you consent to the use of cookies in accordance with the UCC Privacy and Cookies Statement. For more information about cookies and how you can disable them, visit our Privacy and Cookies statement