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AuthorAbdel-Mageed, Ali M.dc.contributor.author
AuthorKučerová, Gabrieladc.contributor.author
AuthorEl-Moemen, Ayman Abddc.contributor.author
AuthorBansmann, Joachimdc.contributor.author
AuthorWidmann, Danieldc.contributor.author
AuthorBehm, R. Jürgendc.contributor.author
Date of accession2022-05-27T09:11:24Zdc.date.accessioned
Available in OPARU since2022-05-27T09:11:24Zdc.date.available
Date of first publication2016-06-02dc.date.issued
AbstractAbstract Changes of the geometric and electronic structure of gold on Au/CeO2 catalysts induced by different pre-treatments (oxidative and reductive) and by the CO oxidation reaction at 80°C were followed by operando XANES / EXAFS measurements. The results showed that i) oxidative pre-treatment (O2) leads to larger Au nanoparticles than reductive pre-treatment (CO), that ii) Au is predominantly metallic during CO oxidation, irrespective of the preceding pre-treatment, and that iii) there is a reaction induced Au particle growth. Correlations with the activity of the respective catalysts and its temporal evolution give insights into the origin of deactivation of these catalysts under reaction conditions, in particular on reaction induced changes in the Au particle size.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseCC BY 3.0dc.rights
Link to license texthttps://creativecommons.org/licenses/by/3.0/dc.rights.uri
Dewey Decimal GroupDDC 530 / Physicsdc.subject.ddc
LCSHX-ray absorption near edge structuredc.subject.lcsh
LCSHCatalystsdc.subject.lcsh
TitleGeometric and electronic structure of Au on Au/CeO2 catalysts during the CO oxidation: Deactivation by reaction induced particle growthdc.title
Resource typeBeitrag zu einer Konferenzdc.type
SWORD Date2022-05-27T06:24:57Zdc.date.updated
DOIhttp://dx.doi.org/10.18725/OPARU-43239dc.identifier.doi
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-oparu-43315-8dc.identifier.urn
GNDXANESdc.subject.gnd
GNDKatalysatordc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
InstitutionInstitut für Oberflächenchemie und Katalyseuulm.affiliationSpecific
Peer reviewjauulm.peerReview
DCMI TypeTextuulm.typeDCMI
CategoryPublikationenuulm.category
DOI of original publication10.1088/1742-6596/712/1/012044dc.relation1.doi
Source - Title of sourceJournal of Physics: Conference Seriessource.title
Source - Place of publicationIOP Publishingsource.publisher
Source - Volume712source.volume
Source - Issue1source.issue
Source - Year2016source.year
Source - Article number012044source.articleNumber
Source - ISSN1742-6588source.identifier.issn
Source - eISSN1742-6596source.identifier.eissn
Conference name16th International Conference on X-ray Absorption Fine Structure (XAFS)uulm.conferenceName
Conference placeKarlsruheuulm.conferencePlace
Conference start date2015-08-23uulm.conferenceStartDate
Conference end date2015-08-28uulm.conferenceEndDate
WoS000383249000045uulm.identifier.wos
Bibliographyuulmuulm.bibliographie


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