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  CO hydrogenation reaction on sulfided molybdenum catalysts

Shi, X.-R., Jiao, H., Hermann, K., & Wang, J. (2009). CO hydrogenation reaction on sulfided molybdenum catalysts. Journal of Molecular Catalysis A, 312(1-2), 7-17. doi:10.1016/j.molcata.2009.06.025.

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Shi, Xue-Rong1, Author           
Jiao, Haijun, Author
Hermann, Klaus1, Author           
Wang, Jianguo, Author
Affiliations:
1Theory, Fritz Haber Institute, Max Planck Society, ou_634547              

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 Abstract: Adsorption of reaction intermediates appearing during CO hydrogenation at the sulfur covered MoS2(1 0−1 0) surfaces, Mo-termination with 42% S coverage and S-termination with 50% S coverage, are investigated systematically using periodic density functional theory methods. Computed vibrational frequencies of all intermediates are compared with observed data from infrared (IR) spectroscopy allowing a detailed interpretation and assignment of the different features in the experimental spectra. The pathway for CO hydrogenation on both terminations has been studied in detail where the most likely reaction path involves C1 type surface species in the sequence CO→CHO→CH2O→CH2OH→CH2→CH3→CH4 in agreement with the experiment.

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Language(s): eng - English
 Dates: 2009-07-01
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.molcata.2009.06.025
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Title: Journal of Molecular Catalysis A
  Alternative Title : J. Mol. Catal. A: Chem.
Source Genre: Journal
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Pages: - Volume / Issue: 312 (1-2) Sequence Number: - Start / End Page: 7 - 17 Identifier: -