Influence of modifying additives on formation of supported copper nanoparticles

A. N. Pestryakov, V. V. Lunin, D. I. Kochubey, A. Yu Stakheev, E. Smolentseva

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3 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)55-58
Number of pages4
JournalEuropean Physical Journal D
Volume34
Issue number1-3
DOIs
Publication statusPublished - Jul 2005

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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