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The influence of concentration and anion nature on the support effect

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Abstract

The kinetic of decomposition of copper formate, acetate, propionate and butyrate under non-isothermal conditions was studied. The support materials were carborundum and silica and the concentrations of the supported compounds were 15, 20, 25 and 30 mass%. In order to avoid the effects of thermal gradients and dilution, a series of parallel samples of carboxylate/support mixtures with the same concentration were studied. The support effect was estimated by the difference between the isokinetic temperature of the supported, respectively mixted carboxylate series, and is discussed in connection with the precursor concentration and the nature of the carboxylate anion. The suggestion of considering the thermodynamic activation function instead of the Arrhenius parameters for discussion on compensation effect was argued.

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References

  1. D. L. Trimm, ‘Design of Industrial Catalysts’, Elsevier, Amsterdam 1980.

    Google Scholar 

  2. E. Segal and D. Fătu, ‘Introduction to Non-isothermal Kinetics’, Publishing House of the Romanian Academy, Bucharest 1983 (in Romanian).

    Google Scholar 

  3. A. Corma, F. Llopis, J. B. Monton and S. Waller, J. Catal., 142 (1993) 97.

    Article  CAS  Google Scholar 

  4. T. Vlase, G. Jurca and N. Doca, Thermochim. Acta, 379 (2001) 59.

    Article  CAS  Google Scholar 

  5. T. Vlase, G. Jurca and N. Doca, J. Therm. Anal. Cal., 56 (1999) 331.

    Article  CAS  Google Scholar 

  6. T. Vlase, G. Jurca and N. Doca, J. Therm. Anal. Cal., 67 (2002) 597.

    Article  CAS  Google Scholar 

  7. J. Zsakó, J. Thermal Anal., 46 (1996) 1845.

    Article  Google Scholar 

  8. J. H. Flynn and L. A. Wall, Polym. Lett., 4 (1966) 323.

    Article  CAS  Google Scholar 

  9. P. Budrugeac, D. Homen tcovschi and E. Segal, J. Therm. Anal. Cal., 63 (2001) 457.

    Article  CAS  Google Scholar 

  10. P. Budrugeac, D. Homen tcovschi and E. Segal, J. Therm. Anal. Cal., 66 (2001) 557.

    Article  CAS  Google Scholar 

  11. S. Glasstone, K. Laidler and H. Eyring, ‘The Theory of Rate Processes’, McGraw-Hill, New York 1941.

    Google Scholar 

  12. F. H. Constable, Proc. R. Soc. London, Ser. A, 108 (1925) 355.

    CAS  Google Scholar 

  13. A. K. Galwery, Adv. Catal., 26 (1977) 247.

    Article  Google Scholar 

  14. W. Linert and R. F. Jamerson, Chem. Soc. Rev., 18 (1989) 477.

    Article  CAS  Google Scholar 

  15. J. Zsakó, J. Thermal Anal., 9 (1976) 101.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Chemistry, Department of Chemistry, West University of Timisoara, Str. Pestalozzi 16, 1900, Timisoara, Romania

    T. Vlase & N. Doca

  2. Department of Chemistry, West University of Timisoara, Str. Pestalozzi 16, 1900, Timisoara, Romania

    G. Vlase & A. Chiriac

Authors
  1. T. Vlase
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  2. G. Vlase
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  3. A. Chiriac
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  4. N. Doca
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Vlase, T., Vlase, G., Chiriac, A. et al. The influence of concentration and anion nature on the support effect. Journal of Thermal Analysis and Calorimetry 72, 847–853 (2003). https://doi.org/10.1023/A:1025018215435

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