EFFECT OF INTRODUCING ALKALINE-EARTH-METAL IONS INTO THE SURFACE-LAYER OF ALUMINUM-OXIDE ON ITS ACID-BASE PROPERTIES

被引：0
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作者：
KOLTSOV, SI
KOLTSOV, YS
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来源：
JOURNAL OF APPLIED CHEMISTRY OF THE USSR | 1992年 / 65卷 / 11期
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O69 [应用化学];
学科分类号：
081704 ;
摘要：
Studies on the adsorption of indicators with pK(a) of 1.1-17.2 have shown that on introducing magnesium (calcium) ions into the surface layer of aluminum oxide a redistribution of the adsorption centers occurs accompanied by a decrease in their basicity compared to the surface centers of Theta-Al2O3 and MgO. The composition and density of the aluminum magnesium oxide surface layer have been determined. It is proposed that introduction of magnesium leads to the formation of a ''surface'' spinel.
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页码：1986 / 1989
页数：4
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