An advance in Raman studies of catalysts: Ultraviolet resonance Raman spectroscopy

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46 Citations (Scopus)

Abstract

Recently an ultraviolet (UV) Raman spectrometer was assembled with the goal of improving Raman spectroscopy for catalysis and surface science studies. Using UV Raman spectroscopy, we have studied a spectrum of catalysts, such as coked reforming catalysts, ZSM-5 and USY zeolites treated with propene, sulfated zirconia catalysts: fresh and deactivated, and low-loading oxide catalysts. In particular, the chemical nature of coke species and the coke formation mechanism were investigated in detail. The results demonstrate that UV Raman spectroscopy can successfully avoid the surface fluorescence which often obscures normal Raman spectra. In addition, the Raman sensitivity is also greatly improved owing to the shorter excitation wavelength and resonance effect in some systems.

Original languageEnglish
Pages (from-to)881-890
Number of pages10
JournalStudies in Surface Science and Catalysis
Volume101 B
Publication statusPublished - 1996

Fingerprint

Raman spectroscopy
catalysts
Catalysts
coke
ultraviolet spectroscopy
Ultraviolet spectroscopy
Coke
Zeolites
Reforming reactions
zirconium oxides
zeolites
Zirconia
Oxides
Catalysis
Propylene
catalysis
Spectrometers
Raman scattering
Fluorescence
spectrometers

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

An advance in Raman studies of catalysts : Ultraviolet resonance Raman spectroscopy. / Li, Can; Stair, Peter C.

In: Studies in Surface Science and Catalysis, Vol. 101 B, 1996, p. 881-890.

Research output: Contribution to journalArticle

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