Reflection-Absorption Infrared Spectroscopy Using a Fourier Transform Spectrometer : A Study of Carbon Monoxide Adsorbed on Pt(111)

  • M. D. Baker
  • M. A. Chesters


The major advantage of infrared spectroscopy over EELS for the study of adsorbate vibrations lies in superior resolution. This factor is particularly important when bandwidths are inherently low (< 5 cm−1) and adsorbate-adsorbate interactions lead to splitting of vibrational bands on a scale of 10 cm−1 or less.

We have been investigating the application of infrared interferometry to the reflection-absorption experiment while studying the adsorption of carbon monoxide on a Pt(111) recrystallised foil using a Digilab FTS-14 spectrometer. In this paper the advantages and limitations associated with the interferometric technique will be outlined and the ultimate sensitivity of currently available FT-IR instruments discussed. The results for the platinum/carbon monoxide system will be used to illustrate the desirability of operation at high (2 cm−1) resolution and the advantage of scanning a wide spectral range.


Electron Energy Loss Spectroscopy Wide Spectral Range Platinum Foil FOURIER Transform Spectrometer Ultimate Sensitivity 
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Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • M. D. Baker
    • 1
  • M. A. Chesters
    • 1
  1. 1.School of Chemical SciencesUniversity of East AngliaNorwichUK

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