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Water–gas shift activity of doped Pt/CeO2 catalysts

Panagiotopoulou Paraskevi, J. Papavasiliou, G. Avgouropoulos, T. Ioannides, D.I. Kondarides

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URIhttp://purl.tuc.gr/dl/dias/D9560875-E373-460B-9EB5-2E21B8556DD3-
Identifierhttps://doi.org/10.1016/j.cej.2007.03.054-
Languageen-
ExtentPages 16–22en
TitleWater–gas shift activity of doped Pt/CeO2 catalystsen
CreatorPanagiotopoulou Paraskevien
CreatorΠαναγιωτοπουλου Παρασκευηel
Creator J. Papavasiliouen
Creator G. Avgouropoulosen
Creator T. Ioannidesen
CreatorD.I. Kondaridesen
PublisherElsevieren
Content SummaryA 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 °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.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-10-23-
Date of Publication2007-
Bibliographic CitationP. Panagiotopoulou, J. Papavasiliou, G. Avgouropoulos, T. Ioannides, D.I. Kondarides,“Water-gas Shift activity of doped Pt/CeO2 catalysts”, Chemical Engineering Journal, Vol. 134, no.1-3, pp. 16-22, Nov. 2007.doi:10.1016/j.cej.2007.03.054.en

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