Topics in Catalysis

, Volume 2, Issue 1–4, pp 127–140 | Cite as

Electronic and geometric effects of alkali promoters in CO hydrogenation over K/Mo2C catalysts

  • Jae Sung Lee
  • Soonho Kim
  • Young Gul Kim


When potassium salts such as K2CO3, KOH, CH3COOK, and K2S were added to Mo2C, the promoted catalysts showed high selectivities to alcohols and light olefins in CO hydrogenation at 573 K and 1.0 MPa. However, K2SO4 and KCl caused only slight increase in olefin selectivity with negligible alcohol formation. These two groups of promoters showed different physical and chemical states during the reaction as observed by AES, EDS, EPMA, IR and transient reaction behavior. This difference accounted for the observed difference in selectivity.


molybdenum carbide catalysts potassium-promoted CO hydrogenation alcohols olefins 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    W.D. Mross, Catal. Rev. Sci. Eng. 25 (1983) 591.Google Scholar
  2. [2]
    G. van der Lee and V. Ponec, Catal. Rev. Sci. Eng. 29 (1987) 183.Google Scholar
  3. [3]
    V. Ponec, Catal. Today 12 (1992) 227.Google Scholar
  4. [4]
    H.C. Woo, I.-S. Nam, J.S. Lee, J.S. Chung, K.H. Lee and Y.G. Kim, J. Catal. 138 (1992) 525.Google Scholar
  5. [5]
    H.C. Woo, I.-S. Nam, J.S. Lee, J.S. Chung and Y.G. Kim, J. Catal. 142 (1993) 672.Google Scholar
  6. [6]
    J.S. Lee, S. Kim, H.C. Woo, K.H. Lee, I.-S. Nam, J.S. Chung and Y.G. Kim, Appl. Catal. A 110 (1994) 11.Google Scholar
  7. [7]
    L. Leclercq, K. Imura, S. Yoshida, T. Barbee and M. Boudart, in:Preparation of Catalysts II, eds. B. Delmon, P. Grange, P.A. Jacob and G. Poncelet (Elsevier, Amsterdam, 1979) p. 627.Google Scholar
  8. [8]
    G.S. Ranhotra, A.T. Bell and J.A. Reimer, J. Catal. 108 (1987) 40.Google Scholar
  9. [9]
    J.S. Lee and M. Boudart, Catal. Lett. 20 (1993) 97.Google Scholar
  10. [10]
    K.Y. Park, W.K. Seo and J.S. Lee, Catal. Lett. 11 (1991) 349.Google Scholar
  11. [11]
    H.C. Woo, K.Y. Park, Y.G. Kim, L-S. Nam, J.S. Chung and J.S. Lee, Appl. Catal. 75 (1991) 267.Google Scholar
  12. [12]
    J.S. Lee, S.T. Oyama and M. Boudart, J. Catal. 106 (1987) 125.Google Scholar
  13. [13]
    K. Nakamoto,Infrared and Raman Spectra of Inorganic and Coordination Compounds, 4th Ed. (Wiley, New York, 1986).Google Scholar
  14. [14]
    M.E. Dry, T. Shingles, L.J. Boshoff and G.J. Oosthuizen, J. Catal. 15 (1969) 120.Google Scholar

Copyright information

© J.C. Baltzer AG, Science Publishers 1995

Authors and Affiliations

  • Jae Sung Lee
    • 1
  • Soonho Kim
    • 1
  • Young Gul Kim
    • 1
  1. 1.Research Center for Catalytic TechnologyPohang University of Science and TechnologyPohangKorea

Personalised recommendations