Catalysis Letters

, Volume 103, Issue 1–2, pp 137–141 | Cite as

Electrochemical Promotion by Potassium of Rh-Catalysed Fischer–Tropsch Synthesis at High Pressure

  • Andrew J. Urquhart
  • Federico J. Williams
  • Richard M. Lambert

Rh-catalysed Fischer–Tropsch synthesis at high pressures exhibits reversible electrochemical promotion by potassium. At 473 K and 14 bar, 43 products were detected, comprising alkanes, alkenes and primary alcohols. Potassium increased selectivity towards alkenes and primary alcohols as a result of actual increases in the rates of formation of these products – an apparently unprecedented observation. Alkane formation was progressively suppressed by added alkali. These findings are discussed in terms of K-induced acceleration and retardation of possible rate limiting steps for alkene and alkane formation, respectively. Plausible mechanisms are discussed.


electrochemical promotion Fischer–Tropsch synthesis potassium 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Vayenas, C.G., Bebelis, S. 1999Catal. Today51581594CrossRefGoogle Scholar
  2. 2.
    Foti, G., Bolzonella, I., Eaves, J., Comninellis, C. 2002Chimia56137142Google Scholar
  3. 3.
    Lambert, R.M., Williams, F.J., Palermo, A., Tikhov, M.S. 2000Top. Catal.139198CrossRefGoogle Scholar
  4. 4.
    Williams, F.J., Palermo, A., Tikhov, M.S., Lambert, R.M. 2000J. Phys. Chem. B104615621CrossRefGoogle Scholar
  5. 5.
    Williams, F.J., Palermo, A., Tracey, S., Tikhov, M.S., Lambert, R.M. 2002J. Phys. Chem. B10656685672CrossRefGoogle Scholar
  6. 6.
    Dahl, S., Logadottir, A., Jacobsen, C.J.H., Norskov, J.K. 2001Appl. Catal. A-General2221929CrossRefGoogle Scholar
  7. 7.
    Jacobsen, C.J.H., Dahl, S., Clausen, B.S., Bahn, S., Logadottir, A., Norskov, J.K. 2001J. Am. Chem. Soc.12384048405CrossRefPubMedGoogle Scholar
  8. 8.
    Van der Laan, G.P., Beenackers, A.A.C.M. 1999Catal. Rev. Sci. Eng.41255318CrossRefGoogle Scholar
  9. 9.
    Jager, B., Espinoza, R. 1995Catal. Today231728CrossRefGoogle Scholar
  10. 10.
    Sie, S.T. 1998Rev. Chem. Eng.14109157Google Scholar
  11. 11.
    Quyoum, R., Berdini, V., Turner, M.L., Long, H.C., Maitlis,  P.M. 1998J. Catal.173355365CrossRefGoogle Scholar
  12. 12.
    Urquhart, A.J., Keel, J.M., Williams, F.J., Lambert, R.M. 2003J. Phys. Chem. B1071059110597CrossRefGoogle Scholar
  13. 13.
    Schulz, H., Claeys, M. 1999Appl. Catal. A-General18691107CrossRefGoogle Scholar
  14. 14.
    Davis, B.H. 2001Fuel Process. Technol.71157166CrossRefGoogle Scholar
  15. 15.
    Hedrick, S.A., Chuang, S.S.C., Pant, A., Dastidar, A.G. 2000Catal. Today55247257CrossRefGoogle Scholar
  16. 16.
    Williams, F.J., Lambert, R.M. 2000Catal. Lett.70914CrossRefGoogle Scholar
  17. 17.
    Lee, J., Hanrahan, C.P., Arias, J., Martin, R.M., Metiu, H. 1983Phys. Rev. Lett.5118031806CrossRefGoogle Scholar
  18. 18.
    Kellner, C.S., Bell, A.T. 1981J. Catal.70418432CrossRefGoogle Scholar
  19. 19.
    Bruice, P.Y. 2001Organic ChemistryPrentice HallNew Jersey ch. 10Google Scholar
  20. 20.
    C.R. Hammond, in Handbook of Chemistry and Physics, 82nd Edition, D.R. Lide (ed.), (CRC Press, Boca Raton, 2001) ch. 4.Google Scholar
  21. 21.
    S.C. Gebhard, B.E. Koel, J. Phys. Chem. 96 (1992) 7056–7063 and X.L. Zhou, J.M. White, Surf. Sci. 185 (1987) 450–456.Google Scholar
  22. 22.
    Cassuto, A., Mane, M., Jupille, J., Tourillon, G., Parent, P. 1992J. Phys. Chem.9659875993CrossRefGoogle Scholar
  23. 23.
    Windham, R.G., Bartram, M.E., Koel, B.E. 1988J. Phys. Chem.9228622870CrossRefGoogle Scholar
  24. 24.
    Sordelli, L., Guidotti, M., Andreatta, D., Vlaic, G., Psaro, R 2003J. Mol. Catal. A: Chem.204–205509518CrossRefGoogle Scholar
  25. 25.
    Kiss, J., Klivenyi, G., Revez, K., Solymosi, F. 1989Surf. Sci223551568CrossRefGoogle Scholar
  26. 26.
    Waugh, K.C. 1992Catal. Today155175CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Andrew J. Urquhart
    • 1
  • Federico J. Williams
    • 1
  • Richard M. Lambert
    • 1
  1. 1.Department of ChemistryUniversity of CambridgeCambridgeEngland

Personalised recommendations