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dc.contributor.authorRood, SC
dc.contributor.authorAhmet, HB
dc.contributor.authorGomez-Ramon, A
dc.contributor.authorTorrente-Murciano, L
dc.contributor.authorReina, TR
dc.contributor.authorEslava, S
dc.date.accessioned2018-12-11T00:30:45Z
dc.date.available2018-12-11T00:30:45Z
dc.date.issued2019-03
dc.identifier.issn0926-3373
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286614
dc.description.abstract© 2018 The Authors The development of novel fabrication methods to produce ceria catalysts with good high-temperature stability is critical for their implementation across a range of different applications. Herein, graphene oxide flakes are used as a sacrificial template in the synthesis of ceria particles to replicate the graphene oxide's two-dimensionality. While performing the synthesis without graphene oxide results in large agglomerations of ceria crystallites, the addition of graphene oxide during the synthesis results in ceria nanoflakes (<10 nm) replicating the graphene oxide morphology. This novel shape limits the diffusion of atoms at high temperature to a two-dimensional plane which is translated into a low sintering degree and consequently, an enhanced thermal stability. In this way, the ceria flakes are capable of maintaining high surface areas after calcination at high temperatures (>400 °C) which results in improved catalytic performance for the oxidation of carbon monoxide. This resistance versus sintering has also a beneficial effect when ceria flakes are used as catalytic support of nickel particles. Improved metal dispersion and high metal-support interaction leads to lower sintering during the dry reforming of methane than similarly prepared un-templated ceria nickel catalysts. These results demonstrate the advantage of using graphene oxide as a sacrificial template for the production of sintering-resistant catalysts with good catalytic performance at high temperatures.
dc.publisherElsevier BV
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleEnhanced ceria nanoflakes using graphene oxide as a sacrificial template for CO oxidation and dry reforming of methane
dc.typeArticle
prism.endingPage368
prism.publicationDate2019
prism.publicationNameApplied Catalysis B: Environmental
prism.startingPage358
prism.volume242
dc.identifier.doi10.17863/CAM.33926
dcterms.dateAccepted2018-10-06
rioxxterms.versionofrecord10.1016/j.apcatb.2018.10.011
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2019-03-01
dc.contributor.orcidEslava, S [0000-0002-2416-3205]
dc.identifier.eissn1873-3883
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L020432/2)


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