Study of copper nanoparticles formation on supports of different nature by UV-Vis diffuse reflectance spectroscopy

A. N. Pestryakov, V. P. Petranovskii, Andrey Nikolaevich Kryazhov, O. Ozhereliev, N. Pfänder, A. Knop-Gericke

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

Supported copper particles are widely used in heterogeneous catalysis. Influence of supports of different nature on the Cu particles formation is studied by the methods of UV-Vis spectroscopy of diffuse reflectance, XRD and electron microscopy. Different states of supported copper have been identified by UV-Vis spectroscopy: absorption bands at 250 (Cu+), 320-370 and 400-440 (charge transfer bands of O-Cu-O and Cu-O-Cu complexes), 520-580 (Cun plasmon resonance) and 620-850 nm (d-d transitions in Cu 2+ ions). The size of Cu clusters and Cun/Cu n δ+ ratio strongly depends on the support nature.

Original languageEnglish
Pages (from-to)173-176
Number of pages4
JournalChemical Physics Letters
Volume385
Issue number3-4
DOIs
Publication statusPublished - 9 Feb 2004

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Ultraviolet spectroscopy
Copper
Spectroscopy
Nanoparticles
microscopy
reflectance
copper
nanoparticles
Catalyst supports
spectroscopy
Electron microscopy
Catalysis
catalysis
Charge transfer
Absorption spectra
electron microscopy
charge transfer
Ions
absorption spectra
ions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Study of copper nanoparticles formation on supports of different nature by UV-Vis diffuse reflectance spectroscopy. / Pestryakov, A. N.; Petranovskii, V. P.; Kryazhov, Andrey Nikolaevich; Ozhereliev, O.; Pfänder, N.; Knop-Gericke, A.

In: Chemical Physics Letters, Vol. 385, No. 3-4, 09.02.2004, p. 173-176.

Research output: Contribution to journalArticle

Pestryakov, A. N. ; Petranovskii, V. P. ; Kryazhov, Andrey Nikolaevich ; Ozhereliev, O. ; Pfänder, N. ; Knop-Gericke, A. / Study of copper nanoparticles formation on supports of different nature by UV-Vis diffuse reflectance spectroscopy. In: Chemical Physics Letters. 2004 ; Vol. 385, No. 3-4. pp. 173-176.
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