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Journal of the Chilean Chemical Society

versión On-line ISSN 0717-9707

Resumen

HIDROBO, A.; RETUERT, J.  y  ARAYA, P.. MESOPOROUS ALUMINOSILICATE MOLECULAR SIEVE: CONTROL OF TEXTURAL PROPERTIES BY POST-SYNTHESIS HYDROTHERMAL REATMENT. J. Chil. Chem. Soc. [online]. 2003, vol.48, n.3, pp. 37-40. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072003000300007.

By means of sol-gel synthesis with silicon and aluminium alkoxides, Triton X-114, and hydrothermal stabilization at various times and temperatures, were obtained aluminosilicates which have a porous structure (MSA) and are thermally stable and partially ordered. The as-synthesized MSA samples were subjected to hydrothermal treatment (HT) from 6 to 96 hours at 150 °C and at 110 to 175 °C for 6 hours to determine the effect of time and temperature on the structure of the final aluminosilicate. All the materials obtained are mesoporous, showing changes in their structural properties: surface area, pore diameter, and mesopore area and volume in direct relation to temperature and HT time

Palabras llave : Mesoporous molecular sieve; aluminosilicate; sol-gel; hydrothermal treatment; catalytic support.

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