Highly dispersed Ptδ+ on TixCe(1-x)O2 as an active phase in preferential oxidation of CO

S. Rico-Francés, E. O. Jardim, T. A. Wezendonk, F. Kapteijn, J. Gascon, A. Sepúlveda-Escribano, Enrique V. Ramos-Fernandez*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


Structure-activity relationships for 1wt.% Pt catalysts were investigated for a series of TixCe(1-x)O2 (x=1, 0.98, 0.9, 0.5, 0.2 and 0) supports prepared by the sol-gel method. The catalysts prepared by impregnation were characterized in detail by applying a wide range of techniques as N2-isotherms, XRF, XRD, Raman, XPS, H2-TPR, Drifts, UV-vis, etc. and tested in the preferential oxidation of CO in the presence of H2. Also several reaction conditions were deeply analyzed. A strong correlation between catalyst performance and the electronic properties let us to propose, based in all the experimental results, a plausible reaction mechanism where several redox cycles are involved.

Original languageEnglish (US)
Pages (from-to)169-178
Number of pages10
JournalApplied Catalysis B: Environmental
StatePublished - Jan 1 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.


  • Ceria
  • Hydrogen purification
  • PROX
  • Platinum
  • Titania

ASJC Scopus subject areas

  • Catalysis
  • General Environmental Science
  • Process Chemistry and Technology


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