Influence of water vapour on low-temperature CO oxidation over Au/Fe 2O3 catalyst

Goran Šmit, Károly Lázár, Menno W.J. Crajé

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Abstract

Influence of water vapour on the activity of Au/Fe2O3 catalyst was tested in the reaction of low-temperature CO oxidation. Addition of water vapour had a positive influence in the temperature range from 303 K to 383 K. In situ DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy) and FT-IR measurements in a vacuum showed the importance of water and -OH groups, as water-derived species, for the efficiency of the catalyst in low-temperature oxidation of CO.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalCroatica Chemica Acta
Volume80
Issue number1
Publication statusPublished - Jun 20 2007

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Keywords

  • -OH groups
  • CO oxidation
  • DRIFTS, FT-IR
  • Fe and Au Mössbauer
  • Haematite (α-Fe O)
  • Supported gold catalyst
  • Water vapour

ASJC Scopus subject areas

  • Chemistry(all)

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