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Thermal analysis applied to characterization of copper and nickel catalysts

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Summary

In this work the properties of HY zeolite containing nickel oxide was investigated using thermal analysis (TG/DTA) and temperature programmed reduction (TPR). The results obtained by XRD and FTIR showed that the impregnation method used did not change the structure of HY zeolite. TPR profiles showed two events at 238 and 507&deg;C which were attributed to reduction of nickel oxide on the HY cavities at different temperatures. The thermodesorption of <Emphasis Type=”Italic”>n</Emphasis>-butylamine from Ni*/HY zeolite showed typically two larger mass loss events attributed to the elimination of n-butylamine adsorbed on the weak acid sites and on the medium+strong acid sites.

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Authors and Affiliations

  1. Federal University of Rio Grande do Norte, Department of Chemistry, CP 1662, CEP 59078-970, Natal, RN, Brazil

    J. A. Moura

  2. Federal University of Rio Grande do Norte, Department of Chemistry, CP 1662, CEP 59078-970, Natal, RN, Brazil

    A. S. Araujo

  3. Federal University of Rio Grande do Norte, Department of Chemistry, CP 1662, CEP 59078-970, Natal, RN, Brazil

    A.C. S. L. S. Coutinho

  4. Federal University of Rio Grande do Norte, Department of Chemistry, CP 1662, CEP 59078-970, Natal, RN, Brazil

    Joana M. F. B. Aquino

  5. Federal University of Rio Grande do Norte, Department of Chemistry, CP 1662, CEP 59078-970, Natal, RN, Brazil

    A. O. S. Silva

  6. Federal University of Rio Grande do Norte, Department of Chemistry, CP 1662, CEP 59078-970, Natal, RN, Brazil

    M. J. B. Souza

Authors
  1. J. A. Moura
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  2. A. S. Araujo
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  3. A.C. S. L. S. Coutinho
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  4. Joana M. F. B. Aquino
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  5. A. O. S. Silva
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  6. M. J. B. Souza
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Moura, J., Araujo, A., Coutinho, A. et al. Thermal analysis applied to characterization of copper and nickel catalysts. J Therm Anal Calorim 79, 435–438 (2005). https://doi.org/10.1007/s10973-005-0080-4

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  • DOI: https://doi.org/10.1007/s10973-005-0080-4

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