Outro título
Evidence of aluminum oxide monolayer formation on a silica gel surface using grafting reactions
Abstract
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.
Contido em
Química nova. São Paulo. Vol. 28, n. 3 (2005), p. 393-396
