Journal of Thermal Analysis and Calorimetry

, Volume 83, Issue 2, pp 451–455 | Cite as

Thermal decomposition of the [Pt(NH3)4]2+ complex in nax zeolite: effect of calcination procedure

  • Camacho Rodrigues A C 
  • Fontes Monteiro J L 


The effect of the calcination procedure on the decomposition of the [Pt(NH3)4]2+ complex in a NaX zeolite was studied by mass spectrometry (MS-TPDE) and diffuse reflectance spectroscopy (DRS). The decomposition of the complex took place in two steps. In the first step, under oxygen, the [Pt(NH3)4]2+ complex was first converted to [Pt(NH3)2]2+ complex, accompanied by nitrogen release. In the second step, corresponding to the decomposition of the remaining two amine ligands, NO formation was also observed. Under He, the decomposition also occurred in two steps with H2 liberation. A reaction scheme was proposed for these results.


mass spectrometry  nitrogen oxide platinum thermal decomposition  zeolite X 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Sherry, HS 1966J. Phys. Chem.701158Google Scholar
  2. 2.
    D. Breck, Zeolite Molecular Sieves. Structure, Chemistry and Use, NY 1994.Google Scholar
  3. 3.
    Sachtler, WMH, Tzou, MS, Teo, BK 1988J. Catal.113220Google Scholar
  4. 4.
    Block, BP, Roth, ES, Simnin, J 1960J. Inorg. Nucl. Chem.1648CrossRefGoogle Scholar
  5. 5.
    Nováková, J, Kubelkova, L, Brabec, L, Bastl, Z, Jaeger, N, Schulz-Ekloff, G 1996Zeolites16173Google Scholar
  6. 6.
    Reagan, WJ, Chester, AW, Kerr, GT 1981J. Catal.6989CrossRefGoogle Scholar
  7. 7.
    Gruszkiewicz, MS, Simonson, JM, Burchell, TD, Cole, DR 2005J. Therm. Anal. Cal.81609CrossRefGoogle Scholar
  8. 8.
    A. C. C. Rodrigues, DSc Thesis, COPPE/UFRJ, 2000.Google Scholar
  9. 9.
    Klepel, O, Hunger, B 2005J. Therm. Anal. Cal.80201CrossRefGoogle Scholar
  10. 10.
    Basch, H, Gray, HB 1967Inorg. Chem. 6 365Google Scholar
  11. 11.
    J. Chatt, G. A. Gamlen and L. E. Orgel, J. Chem Soc., (1958) 486.Google Scholar
  12. 12.
    Maesen, TLM, Botman, MJP, Slaghek, TM, She, L, Zhang , JY, Ponec, V 1986Appl. Catal. A2535Google Scholar
  13. 13.
    Lopez, T, Bosch, P, Moran, M, Gomez, R 1993J. Phys. Chem.971671Google Scholar
  14. 14.
    Jorgensen, CK 1956Acta Chem. Soc.10518Google Scholar
  15. 15.
    Lopez, T, Villa, M, Gomez, R 1991 J. Phys. Chem.95 1690CrossRefGoogle Scholar
  16. 16.
    Sachtler, WMH, Zhang, Z 1993Adv. Catal.39129Google Scholar
  17. 17.
    Gallezot, P 1979Catal. Rev.20121Google Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Camacho Rodrigues A C 
    • 1
  • Fontes Monteiro J L 
    • 1
  1. 1.NUCAT/PEQ/COPPE/UFRJ, Universidade Federal do Rio de Janeiro, Ilha do FundãoRio de JaneiroBrazil

Personalised recommendations