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Dielectric Properties of MoS2 and Pt Catalysts: Effects of Temperature and Microwave Frequency

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Abstract

The effects of temperature and microwave frequency on the dielectric properties of MoS2 and Pt catalysts together with an aluminum oxide support were investigated. Dielectric constants and dielectric loss factors were measured in a temperature range of 200-800 °C by a cavity resonator technique with a cylindrical copper cavity resonating in TM0n0 modes (n = 1, 2, ... ,5), which corresponded to frequencies of 0.615, 1.413, 2.216, 3.020, and 3.825 GHz.

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References

  1. J.M. Thiebaut, G. Roussy, M.S. Medjram, F. Garin, L. Seyfried and G. Maire, Catal. Lett. 21 (1993) 133.

    Google Scholar 

  2. G. Roussy, J.M. Thiebaut, M. Souiri, E. Marchal, A. Kiennemann and G. Maire, Catal. Today 21 (1994) 349.

    Google Scholar 

  3. G. Roussy, E. Marchal, J.M. Thiebaut, A. Kleinnemann and A. Trincone, J. Chem. Soc. Perkin Trans. 1 (1997) 1001.

    Google Scholar 

  4. F. Chemat, D.C. Esveld, M. Poux and J.L. Di-Martino, J. Microwave Power & Electromagnetic Energy 33 (1998) 88.

    Google Scholar 

  5. S. Ringler, P. Girard, G. Maire, S. Hilaire, G. Roussy and F. Garin, Appl. Catal. B 20 (1999) 219.

    Google Scholar 

  6. D.A.C. Stuerga and P.J. Gaillard, J. Microwave Power & Electromagnetic Energy 31 (1996) 87.

    Google Scholar 

  7. D.A.C. Stuerga and P.J. Gaillard, J. Microwave Power & Electromagnetic Energy 31 (1996) 101.

    Google Scholar 

  8. J. Thomas, Catal. Lett. 49 (1997) 137.

    Google Scholar 

  9. W.L. Perry, D.W. Cooke, J.D. Katz and A.K. Datye, Catal. Lett. 47 (1997) 1.

    Google Scholar 

  10. W.L. Perry, J.D. Katz, D. Rees, M.T. Paffet and A.K. Datye, J. Catal. 171 (1997) 431.

    Google Scholar 

  11. X.L. Zhang, D.O. Hayward and D.M.P. Mingos, Chem. Commun. (1999) 975.

  12. X.L. Zhang, D.O. Hayward, C. Lee and D.M.P. Mingos, Appl. Catal. B: Envir. 33 (2001) 137.

    Google Scholar 

  13. X.L. Zhang, Studies on Heterogeneous Catalysis Using Microwave and Conventional Heating (Ph.D. Thesis, University of London, London, 2000).

    Google Scholar 

  14. X.L. Zhang, D.O. Hayward and D.M.P. Mingos, Ind. Eng. Chem. Res. 40 (2001) 2810.

    Google Scholar 

  15. A.R. von Hippel, Dielectric Materials and Applications (MIT Press, Cambridge, MA, 1954).

    Google Scholar 

  16. I. Chamberlain and G.W. Chantry, High Frequency Dielectric Measurements (IPC, New York, 1973).

    Google Scholar 

  17. B.K.P. Scaife, Complex Permittivity (English University Press, 1971).

  18. F. Horner, T.A. Taylor, R. Dunsmuir, J. Lamb and W. Jackson, J. Intl. Elec. Eng. 93 (1946) 53.

    Google Scholar 

  19. S. Li, C. Akyel and R.G. Bosisio, I.E.E.E. MIT, 30 (1982) 100.

    Google Scholar 

  20. P.W. McMillan and G. Partridge, J. Mat. Sci. 7 (1972) 847.

    Google Scholar 

  21. J. Inglesias and W.B. Westphall, Supplementary Dielectric Constant and Loss Measurements on High Temperature Materials (Technical Report 203, MIT, January, 1967).

  22. H.F. Huang, J. Microwave Power 11 (1976) 305.

    Google Scholar 

  23. A.C. Metaxas and R.J. Meredith, Industrial Microwave Heating (Peter Peregrinus, London, 1983).

    Google Scholar 

  24. V.M. Kenkre, L. Skala, M.W. Weiser and J.D. Katz, J. Mater. Sci. 26 (1991) 2483.

    Google Scholar 

  25. O.E. Beqqali, I. Zorkani, F. Rogemond, H. Chermette, R.B. Chaabane, M. Gamoudi and G. Guillaud, Synthetic Met. 90 (1997) 165.

    Google Scholar 

  26. G. Boureau, O. Masmoudi and R. Tetot, Solid State Commun. 79 (1991) 299.

    Google Scholar 

  27. J.M. Thiebaut, J. Mbotto, J. Bessiere and G. Roussy, J. Chim. Phys. Phys.-Chim. Bio. 82 (1985) 401.

    Google Scholar 

  28. B.V. Hamon, Aust. J. Phys. 6 (1953) 304.

    Google Scholar 

  29. R. Coelho, Physics of Dielectrics for Engineers (Elsevier, Amsterdam, 1979).

    Google Scholar 

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Zhang, X., Hayward, D.O. & Mingos, D.M.P. Dielectric Properties of MoS2 and Pt Catalysts: Effects of Temperature and Microwave Frequency. Catalysis Letters 84, 225–233 (2002). https://doi.org/10.1023/A:1021488222243

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  • DOI: https://doi.org/10.1023/A:1021488222243

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