Estudio de la descomposición térmica de compuestos tipo hidrotalcita

  1. Nebot Díaz, Isaac 2
  2. Rives Arnau, Vicente 3
  3. Rocha, J. 1
  4. Carda Castelló, Juan Bautista 2
  1. 1 Universidade de Aveiro
    info

    Universidade de Aveiro

    Aveiro, Portugal

    ROR https://ror.org/00nt41z93

  2. 2 Universitat Jaume I
    info

    Universitat Jaume I

    Castelló de la Plana, España

    ROR https://ror.org/02ws1xc11

  3. 3 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

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Revista:
Boletín de la Sociedad Española de Cerámica y Vidrio

ISSN: 0366-3175

Any de publicació: 2002

Volum: 41

Número: 4

Pàgines: 411-414

Tipus: Article

DOI: 10.3989/CYV.2002.V41.I4.674 DIALNET GOOGLE SCHOLAR lock_openAccés obert editor

Altres publicacions en: Boletín de la Sociedad Española de Cerámica y Vidrio

Resum

Thermal decomposition of hydrotalcite-like compounds with formula Mgx Al1-x(CO3 )x/2·nH2 O has been studied varying the molar ratio (x) between Mg and Al cations. Compounds synthesized by coprecipitation method at fixed pH, have been fired at different temperatures between 500 and 1200 ºC with different remaining times. This study has been carried out by Differential Thermal and Thermogravimetric Analysis (DTA/TG), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and 27Al Nuclear Magnetic Resonance (27Al-MAS-NMR) Main results show that the optimum molar ratio (x) to hydrotalcite phase formation is between 0.20 and 0.35, obtaining spinel (MgAl2 O4 ) and Periclase (MgO) as the decomposition compounds.

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Informació de finançament

Asimismo, al proyecto MAT-2000-1148- C02-01 del MCyT por el apoyo económico prestado.

Finançadors

  • MCYT Spain
    • MAT-2000-1148- C02-01

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Fuente de los datos: Dialnet