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Monolayer dispersion of molybdenum on silica

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Abstract

Laser Raman spectroscopy (LRS) was used to characterize the hydrated and dehydrated states of surface-supported Mo6+ on Davison 952 silica gel. Silica-supported Mo samples were prepared from MO2(η3-C3H5)4 and (η5-C5H5)2Mo2(CO)4. Metal loadings of 5.1–7.8 wt% Mo were studied. Crystallites of MoO3 were not observed at these high loadings. An upper limit for dispersing dehydrated, isolated Mo6+ was found at about 1 Mo atom/nm2, which corresponds to the isolated silanol density of silica.

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References

  1. S.R. Stampfl, Y. Chen, J.A. Dumesic, C. Niu and C.G. Hill Jr., J. Catal. 105 (1987) 445.

    Google Scholar 

  2. C.C. Williams, J.G. Ekerdt, J.-M. Jehng, F.D. Hardcastle, A.M. Turek and I.E. Wachs, J. Phys. Chem. 95 (1991) 8781.

    Google Scholar 

  3. M. de Boer, A.J. van Dillen, D.C. Koningsberger, J.W. Geus, M.A. Vuurman and I.E. Wachs, Catal. Lett. 11 (1991) 227.

    Google Scholar 

  4. T. Machej, J. Haber, A.M. Turek and I.E. Wachs, Appl. Catal. 70 (1991) 115.

    Google Scholar 

  5. J. Leyrer, D. Mey and H. Knozinger, J. Catal. 124 (1990) 349.

    Google Scholar 

  6. Y. Iwasawa and M. Yamagishi, J. Catal. 82 (1983) 373.

    Google Scholar 

  7. K. Marcinkowska, L. Rodrigo, S. Kaliaguine and P.C. Roberge, J. Catal. 97 (1986) 75.

    Google Scholar 

  8. J.P. Candlin ad H. Thomas, Adv. Chem. Ser. 132 (1974) 212.

    Google Scholar 

  9. Yu.I. Yermakov, Catal. Rev. 13 (1976) 77.

    Google Scholar 

  10. B.A. Morrow and A.J. McFarlan, Langmuir 7 (1991) 1695.

    Google Scholar 

  11. R.D. Roark, S.D. Kohler and J.G. Ekerdt, Catal. Lett. 16 (1992) 71.

    Google Scholar 

  12. N.D. Spencer, J. Catal. 109 (1988) 187.

    Google Scholar 

  13. M.D. Curtis, N.A. Fotinos, L. Messerle and A.P. Sattelberger, Inorg. Chem. 22 (1983) 1559.

    Google Scholar 

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Authors and Affiliations

  1. Department of Chemical Engineering, University of Texas at Austin, 78712, Austin, TX, USA

    Ryan D. Roark, Steven D. Kohler & John G. Ekerdt

  2. Zettlemoyer Center for Surface Studies, Departments of Chemical Engineering and Chemistry, Lehigh University, 18015, Bethlehem, PA, USA

    Soung Du Kim & Israel E. Wachs

Authors
  1. Ryan D. Roark
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  2. Steven D. Kohler
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  3. John G. Ekerdt
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  4. Soung Du Kim
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  5. Israel E. Wachs
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Roark, R.D., Kohler, S.D., Ekerdt, J.G. et al. Monolayer dispersion of molybdenum on silica. Catal Lett 16, 77–83 (1992). https://doi.org/10.1007/BF00764357

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  • DOI: https://doi.org/10.1007/BF00764357

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