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Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (1): 98.

• Articles • Previous Articles     Next Articles

IR Spectra of Chemisorbed Species on MoSx-based Catalysts for Mixed Alcohols Synthesis from Syngas

YANGY Yo-Quan, XU Jin-Lai, LIN Guo-Dong, LIAO Yuan-Yan, YUAN You-Zhu, ZHANG Hong-Bin   

  1. Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen University, Xiamen, 361005
  • Online:1994-01-24 Published:1994-01-24

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Abstract: The IRspectra of chemisorbed species on SiO2 supported,or unsupported,alkali-promoted MoSx-based catalysts for the mixed alcohols synthesis from syngas were taken in-situ under the reaction conditions of 538 K,2.0 MPa,and flowing feed stream of syngas(CO/H2=1,V/V),and ex-situ at 323 K,atmospheric pressure and under the controlled atmosphere.The results indicate that the detectable surface intermediates of CO hydrogenation are and that the IRbands as the fingerprints of and are ambiguous,and too weak to be sure of assignments.Based upon the results of the present IR investigation,the major reaction pathways of the syngas conversion over the MoSx-K+ catalysts are suggested.

Key words: Syngas conversion, Mixed alcohols, MoSx-based catalysts, FTIR characterization

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