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

Química Nova

Julia M. D. Cónsul¹  Ione M. Baibich¹  Edilson V. Benvenutti¹  Daniel Thiele¹ 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Química Porto Alegre RS

关键词: grafting;    atomic dispersion;    surface synthesis;   

DOI  :  10.1590/S0100-40422005000300005

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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