Reaction Kinetics and Catalysis Letters

, Volume 31, Issue 2, pp 315–320 | Cite as

Identification of different structures of chromium trioxide supported on highly dispersed silica by photoluminescence

  • W. Hill
  • B. N. Shelimov
  • I. R. Kibardina
  • V. B. Kazanskii
Article

Abstract

The intensity ratio of the two lines in the excitation spectra of photoluminescence of CrO3 supported on silica depends on the chromium content and on catalyst treatment. Because of the characteristic dependence the excitation line at 410 nm is related to monochromate while the other line centered at 490–540 nm is due to di- or polychromates.

Keywords

Physical Chemistry Chromium Catalysis Intensity Ratio Excitation Spectrum 

Abstract

Соотношение интенсивностей двух линий в спектре возбуждения фотолюминесценции CrO3, нанесенной на силикагель, зависит от содерзания хрома и обработки катализаторов. Линия в спектре возбуждения при 410 нм отнесена к монохроматам, а вторая линия прн 490–530 нм-к би-или полихроматам.

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Copyright information

© Akadémiai Kiadó 1986

Authors and Affiliations

  • W. Hill
    • 1
  • B. N. Shelimov
    • 2
  • I. R. Kibardina
    • 2
  • V. B. Kazanskii
    • 2
  1. 1.Central Institute of Physical ChemistryAcademy of Sciences of the GDRBerlinGDR
  2. 2.N.D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRMoscowUSSR

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