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

Quimica nova

Baibich, Ione M.¹  Benvenutti, Edilson V.¹  Cónsul, Julia M. D.¹  Thiele, Daniel¹ 

[1] Universidade Federal do Rio Grande do Sul, Porto Alegre

关键词: grafting;    atomic dispersion;    surface synthesis.;   

DOI  :  10.1590/S0100-40422005000300005

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Aluminum oxidewas dispersed on a commercial silica gel surface, using successive graftingreactions. The reaction products were characterized by N2 adsorption-desorptionisotherms, scanning electron microscopy and infrared spectroscopy. The progressiveincorporation of aluminum, up to 5.5% (w/w), does not produce agglomerationof alumina, since changes in the original pore size distribution of the silicamatrix were not observed. The aluminum oxide covers homogeneously the silicasurface.

【 授权许可】

CC BY