SEARCH

SEARCH BY CITATION

Keywords:

  • IR spectroscopy;
  • isotopes;
  • oxidation;
  • platinum;
  • reaction mechanisms
Thumbnail image of graphical abstract

DRIFTing through time: Modulation excitation in situ diffuse-reflectance IR Fourier transform (DRIFT) spectroscopy with periodic isotopic perturbation (D2 and 13CO) has been applied to elucidate the pathway for the preferential oxidation of carbon monoxide (PROX) over a commercial Pt/alumina catalyst. The time- and phase-domain IR spectra suggest a water-assisted pathway for the preferential oxidation reaction.