Skip to main content
SpringerLink
Log in

Cumene hydrogenation turnover rates on Mo2C: CO and O2 as probes of the active site

  • Published:
Catalysis Letters Aims and scope Submit manuscript

Abstract

The use of CO and O2 chemisorption to titrate surface sites on β-Mo2C was examined using cumene (isopropylbenzene) hydrogenation as a test reaction. The tests were carried out using β-Mo2C samples prepared at two different temperatures so as to deposit different amounts of pyrolytic carbon on their surfaces. Synthesis at 961 K produced a surface that was substantially free of pyrolytic carbon (90% clean), while synthesis at 981 K produced a surface that was contaminated with carbon (25% clean). It was found that O2 uptakes were about six times higher than CO uptakes, but both gave consistent turnover rates for the reaction.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. L. Volpe and M. Boudart, J. Solid State Chem. 59 (1985) 348.

    Article  CAS  Google Scholar 

  2. J.S. Lee, S.T. Oyama and M. Boudart, J. Catal. 106 (1987) 125.

    Article  CAS  Google Scholar 

  3. G.S. Ranhotra, G.W. Haddix, A.T. Bell and J.A. Reimer, J. Catal. 108 (1987) 24.

    Article  CAS  Google Scholar 

  4. L.T. Thompson, C.W. Colling, D. Choi, B.G. Demczyk and J.-G. Choi, in: New Frontiers in Catalysis, Proc. 10th Int. Congr. Catal., eds. L. Guczi et al. (Elsevier, Amsterdam, 1993).

    Google Scholar 

  5. G.M. Dolce, P.E. Savage and L.T. Thompson, Energy Fuels 11 (1997) 668.

    Article  CAS  Google Scholar 

  6. V.L.S. Teixera da Silva, M. Schmal and S.T. Oyama, J. Solid State Chem. 123 (1996) 168.

    Article  Google Scholar 

  7. J.-G. Choi, J.R. Benner and L.T. Thompson, J. Catal. 154 (1995) 33.

    Article  CAS  Google Scholar 

  8. L. Leclerq, K. Imura, S. Yoshida, T. Barbee and M. Boudart, in: Preparation of Catalysts II, ed. B. Delmon (Elsevier, New York, 1978) p. 627.

    Google Scholar 

  9. T.P. St. Clair, S.T. Oyama, D.F. Cox, S. Otani, Y. Ishizawa, R.-L. Lo, K. Fukui and Y. Iwasawa, Surf. Sci. (1999), in press.

  10. M. Boudart, in: Proc. 6th Int. Congr. Catal., Vol. 1, eds. G.C. Bond, P.B. Wells and F.C. Tompkins (The Chemical Society, London, 1977) p. 1.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemical Engineering, Environmental Catalysis and Materials Laboratory, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061‐0211, USA

    Todd P. St. Clair, Bala Dhandapani & S.T. Oyama

Authors
  1. Todd P. St. Clair
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Bala Dhandapani
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S.T. Oyama
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

St. Clair, T.P., Dhandapani, B. & Oyama, S. Cumene hydrogenation turnover rates on Mo2C: CO and O2 as probes of the active site. Catalysis Letters 58, 169–171 (1999). https://doi.org/10.1023/A:1019062925008

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1019062925008

Search

Navigation