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An in-situ infrared cell and its application in study of sulfidation of a model Co/Mo catalyst

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Abstract

A flow cell was constructed to measure infrared spectra of catalyst samples with controlled heating at 673 K. We monitored sulfidation of an unsupported Co-Mo catalyst by thiophene. Correlation was found between the intensity changes and frequency shifts of the metal-oxygen IR bands and the appearance of oxythiomolybdate bands and the simultaneous increase of thiophene conversion. These results point to short-living cobalt-oxythiomolybdates which may have highest HDS activity.

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Authors and Affiliations

  1. Institute of Isotopes of the Hungarian Academy of Sciences, P.O.B. 77, H-1525, Budapest, Hungary

    T. Szilágyi, T. I. Korányi & Z. Paál

  2. Zentrum für wissenschaftlichen Gerätebau der Akademie der Wissenschaften der DDR, Rudower Chaussee 6, 1199, Berlin, GDR

    J. Tilgner

Authors
  1. T. Szilágyi
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  2. T. I. Korányi
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  3. Z. Paál
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  4. J. Tilgner
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Szilágyi, T., Korányi, T.I., Paál, Z. et al. An in-situ infrared cell and its application in study of sulfidation of a model Co/Mo catalyst. Catal Lett 2, 287–293 (1989). https://doi.org/10.1007/BF00770226

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  • DOI: https://doi.org/10.1007/BF00770226

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