Evidências da formação de monocamada de óxido de alumínio sobre sílica, através de reações de enxerto
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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| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Química
2005
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300005 |
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