Evidências da formação de monocamada de óxido de alumínio sobre sílica, através de reações de enxerto

AUTOR(ES)
FONTE

Química Nova

DATA DE PUBLICAÇÃO

2005-06

RESUMO

Aluminum oxide was dispersed on a commercial silica gel surface, using successive grafting reactions. The reaction products were characterized by N2 adsorption-desorption isotherms, scanning electron microscopy and infrared spectroscopy. The progressive incorporation of aluminum, up to 5.5% (w/w), does not produce agglomeration of alumina, since changes in the original pore size distribution of the silica matrix were not observed. The aluminum oxide covers homogeneously the silica surface.

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