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Influence of modifying additives on formation of supported copper nanoparticles

  • A. N. PestryakovEmail author
  • V. V. Lunin
  • D. I. Kochubey
  • A. Yu. Stakheev
  • E. Smolentseva
Electronic and Structural Properties

Abstract.

The influence of modifying additives of Ce, Zr, La and Cs oxides on changes of electronic state of supported copper during the catalytic reaction of butane complete oxidation has been studied by the methods of IR-spectroscopy of adsorbed CO, XPS, EXAFS and XRD. The modifying additions of cerium and zirconium oxides stabilize the ionic state of copper, while lanthanum and cesium oxides decrease the effective charge of copper ions. The observed effects are caused by variation in metal dispersivity in the modified samples and by electron donor-acceptor interaction of the surface atoms and ions of copper with the modifier.

Keywords

Copper Zirconium Cerium Cesium Lanthanum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  • A. N. Pestryakov
    • 1
    Email author
  • V. V. Lunin
    • 2
  • D. I. Kochubey
    • 3
  • A. Yu. Stakheev
    • 4
  • E. Smolentseva
    • 1
  1. 1.Tomsk Polytechnic UniversityTomskRussia
  2. 2.Chemistry DepartmentMoscow State UniversityMoscowRussia
  3. 3.Boreskov Institute of CatalysisNovosibirskRussia
  4. 4.Institute of Organic ChemistryMoscowRussia

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