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The role of adsorbate overlayers in thiophene hydrodesulfurization over molybdenum and rhenium single crystals

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Abstract

Thiophene hydrodesulfurization (HDS) has been investigated over model single crystal catalysts of molybdenum and rhenium. Thiophene HDS is a structure sensitive reaction over rhenium and a structure insensitive reaction over molybdenum. Adsorbed sulfur decreases the activity of both Re(0001) and Mo(100) surfaces while adsorbed carbon has distinctly different effects on the catalytic properties of the two metals. Carbon overlayers deactivate the Re(0001) surface but have no effect on the HDS activity of the Mo(100) surface. Radiotracer35S and14C studies indicate that HDS occurs on an adsorbate overlayer on molybdenum comprised primarily of carbon. HDS over rhenium, on the other hand, occurs on the bare metal surface. This appears to be responsible for the observed differences in the influence of surface structure on HDS activity.

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References

  1. M. Boudart, Adv. Catal. 20 (1969) 153.

    Google Scholar 

  2. G. Somorjai and J. Carazza, Ind. Eng. Chem. Fundam. 25 (1986) 63.

    Google Scholar 

  3. M.E. Bussell, A.J. Gellman and G.A. Somorjai, J. Catal. 110 (1988) 423.

    Google Scholar 

  4. M.E. Bussell and G.A. Somorjai, J. Catal. 106 (1987) 93.

    Google Scholar 

  5. A.J. Gellman, M.E. Bussell and G.A. Somorjai, J. Catal. 107 (1987) 103.

    Google Scholar 

  6. A.J. Gellman, M.H. Farias, M. Salmeron and G.A. Somorjai, Surf. Sci. 136 (1984) 217.

    Google Scholar 

  7. C. Wagner, J. Chem. Phys. 21 (1953) 1819.

    Google Scholar 

  8. D.G. Kelly, A.J. Gellman, M. Salmeron, G.A. Somorjai, V. Maurice, M. Huber and J. Oudar, Surface Sci., (in press).

  9. R. Ducros, M. Housley, M. Alnot and A. Cassuto, Surf. Sci. 71 (1978) 433.

    Google Scholar 

  10. M.H. Farias, A.J. Gellman, G.A. Somorjai, R.R. Chianelli and K.S. Liang, Surf. Sci. 140 (1984) 181.

    Google Scholar 

  11. D.G. Kelly, M. Salmeron and G.A. Somorjai, Surf. Sci. 175 (1986) 465.

    Google Scholar 

  12. D.G. Kelly, J.A. Odriozola and G.A. Somorjai, J. Phys. Chem. 91 (1987) 5695.

    Google Scholar 

  13. F. Zaera and G.A. Somorjai, J. Am. Chem. Soc. 106 (1984) 2288.

    Google Scholar 

Download references

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Author notes

  1. Andrew J. Gellman

    Present address: Department of Chemistry, University of Illinois, 61801, Urbana, IL

Authors and Affiliations

  1. Department of Chemistry, University of California, Berkeley

    Mark E. Bussel, Andrew J. Gellman & Gabor A. Somorjai

  2. Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, University of California, 94720, Berkeley, CA, USA

    Mark E. Bussel, Andrew J. Gellman & Gabor A. Somorjai

Authors
  1. Mark E. Bussel
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  2. Andrew J. Gellman
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  3. Gabor A. Somorjai
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Bussel, M.E., Gellman, A.J. & Somorjai, G.A. The role of adsorbate overlayers in thiophene hydrodesulfurization over molybdenum and rhenium single crystals. Catal Lett 1, 195–201 (1988). https://doi.org/10.1007/BF00766174

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