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Catalysis Letters

, Volume 109, Issue 1–2, pp 7–12 | Cite as

PtRu Colloid Nanoparticles for CO Oxidation in Microfabricated Reactors

  • Asbjørn Klerke
  • Souheil Saadi
  • Maja Bøg Toftegaard
  • Anders Theilgaard Madsen
  • Jane H. Nielsen
  • Søren Jensen
  • Ole Hansen
  • Claus Hviid Christensen
  • Ulrich J. QuaadeEmail author
Article

Abstract

The catalytic activity of PtRu colloid nanoparticles for CO oxidation is investigated in microfabricated reactors. The measured catalytic performance describes a volcano curve as a function of the Pt/Ru ratio. The apparent activation energies for the different alloy catalysts are between 21 and 117 kJ/mol, which agree well with literature. The size distribution of the colloid nanoparticles is determined from STM and TEM, from which an average size of the colloid nanoparticles of 2.2±0.5 nm is determined.

Keywords

CO oxidation heterogeneous catalysis nanoparticles colloids alloyed nanoparticles platinum and ruthenium 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Asbjørn Klerke
    • 1
  • Souheil Saadi
    • 2
  • Maja Bøg Toftegaard
    • 1
  • Anders Theilgaard Madsen
    • 1
  • Jane H. Nielsen
    • 2
  • Søren Jensen
    • 3
  • Ole Hansen
    • 2
    • 3
  • Claus Hviid Christensen
    • 1
  • Ulrich J. Quaade
    • 2
    Email author
  1. 1.Danish National Research Foundation’s Center for Sustainable and Green Chemistry (CSG), Department of ChemistryTechnical University of DenmarkLyngbyDenmark
  2. 2.Danish National Research Foundation’s Center for Individual Nanoparticle Functionality (CINF), Department of PhysicsTechnical University of DenmarkLyngbyDenmark
  3. 3.MIC – Department of Micro and NanotechnologyTechnical University of DenmarkLyngbyDenmark

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