Evidence of aluminum oxide monolayer formation on a silica gel surface using grafting reactions.

被引：15

作者：

Cónsul, JMD ^{[1
]}

Baibich, IM ^{[1
]}

Benvenutti, EV ^{[1
]}

Thiele, D ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

来源：

QUIMICA NOVA | 2005年 / 28卷 / 03期

关键词：

grafting; atomic dispersion; surface synthesis;

D O I：

10.1590/S0100-40422005000300005

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

EVIDENCE OF ALUMINUM OXIDE MONOLAYER FORMATION ON A SILICA GEL SURFACE USING GRAFTING REACTIONS. Aluminum oxide was dispersed on a commercial silica gel surface, using successive grafting reactions. The reaction products were characterized by N-2 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 ill the original pore size distribution of the silica matrix were not observed. The aluminum oxide covers homogeneously the silica surface.

引用

页码：393 / 396

页数：4

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