A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts

Yek Tann Chua; Peter C. Stair; Israel E. Wachs

doi:10.1021/jp011366g

A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts

Yek Tann Chua, Peter C. Stair^*, Israel E. Wachs

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

116 Scopus citations

Abstract

A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts was presented. Spectra from the oxides, both hydrated as a result of contact with ambient air and dehydrated as a result of calcination of laser-induced heating, were recorded. Strong absorption by the samples in the ultraviolet reduced the number of scatterers contributing to the Raman spectrum while producing only modest increases in the Raman scattering cross section due to resonance enhancement. The result was much lower signal levels with ultraviolet excitation compared to visible wavelength excited spectra.

Original language	English (US)
Pages (from-to)	8600-8606
Number of pages	7
Journal	Journal of Physical Chemistry B
Volume	105
Issue number	36
DOIs	https://doi.org/10.1021/jp011366g
State	Published - Sep 13 2001

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts was presented. Spectra from the oxides, both hydrated as a result of contact with ambient air and dehydrated as a result of calcination of laser-induced heating, were recorded. Strong absorption by the samples in the ultraviolet reduced the number of scatterers contributing to the Raman spectrum while producing only modest increases in the Raman scattering cross section due to resonance enhancement. The result was much lower signal levels with ultraviolet excitation compared to visible wavelength excited spectra.",

author = "Chua, {Yek Tann} and Stair, {Peter C.} and Wachs, {Israel E.}",

year = "2001",

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AU - Chua, Yek Tann

AU - Stair, Peter C.

AU - Wachs, Israel E.

PY - 2001/9/13

Y1 - 2001/9/13

N2 - A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts was presented. Spectra from the oxides, both hydrated as a result of contact with ambient air and dehydrated as a result of calcination of laser-induced heating, were recorded. Strong absorption by the samples in the ultraviolet reduced the number of scatterers contributing to the Raman spectrum while producing only modest increases in the Raman scattering cross section due to resonance enhancement. The result was much lower signal levels with ultraviolet excitation compared to visible wavelength excited spectra.

AB - A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts was presented. Spectra from the oxides, both hydrated as a result of contact with ambient air and dehydrated as a result of calcination of laser-induced heating, were recorded. Strong absorption by the samples in the ultraviolet reduced the number of scatterers contributing to the Raman spectrum while producing only modest increases in the Raman scattering cross section due to resonance enhancement. The result was much lower signal levels with ultraviolet excitation compared to visible wavelength excited spectra.

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A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts

Abstract

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