Water-gas shift activity of doped Pt/CeO2 catalysts

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dc.contributor.authorPanagiotopoulou, P.en
dc.contributor.authorPapavasiliou, J.en
dc.contributor.authorAvgouropoulos, G.en
dc.contributor.authorIoannides, T.en
dc.contributor.authorKondarides, D. I.en
dc.date.accessioned2015-11-24T18:34:22Z
dc.date.available2015-11-24T18:34:22Z
dc.identifier.issn1385-8947-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16921
dc.rightsDefault Licence-
dc.subjectwater-gas shiften
dc.subjectplatinumen
dc.subjectcerium oxideen
dc.subjectdopingen
dc.subjectcombustion synthesisen
dc.subjectftiren
dc.subjecttpren
dc.subjectcarbon monoxideen
dc.subjecttemperature-programmed desorptionen
dc.subjectnoble-metal catalystsen
dc.subjectin-situ ftiren
dc.subjectco oxidationen
dc.subjectchemisorptive propertiesen
dc.subjectreduction temperatureen
dc.subjectoxygen-storageen
dc.subjectmixed oxidesen
dc.subjectceriaen
dc.subjectsupporten
dc.titleWater-gas shift activity of doped Pt/CeO2 catalystsen
heal.abstractA series of platinum catalysts supported on cation (Me)-doped cerium oxide (Me = Ca, La, Mg, Zn, Zr, Yb, Y, Gd) have been prepared employing the urea-nitrate combustion method. The effects of Me-promotion on the physicochemical and chemisorptive properties of Pt/CeO2 catalysts and on their catalytic performance for the water-gas shift (WGS) reaction have been investigated. It has been found that the WGS activity of Pt/Ce-Me-O catalysts depends on the nature of the dopant employed, varying in the order of Yb > Gd > Zr > Mg > La > CeO2(undoped) > Ca > Y > Zn, with the Yb-promoted catalyst being about one order of magnitude more active than the Zn-promoted one, at 250 degrees C. Evidence is provided that promotion affects the reducibility and oxygen ion mobility of the CeO2 support, which in turn affects the WGS activity of dispersed platinum crystallites. (c) 2007 Elsevier B.V. All rights reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1016/j.cej.2007.03.054-
heal.identifier.secondary<Go to ISI>://000249877600004-
heal.identifier.secondaryhttp://ac.els-cdn.com/S1385894707002185/1-s2.0-S1385894707002185-main.pdf?_tid=dd30c57ff44fce20c26bdc4254aca817&acdnat=1334223142_4e7a9f753ad288c5beaaee5f4520511d-
heal.journalNameChemical Engineering Journalen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2007-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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