Pristine points of zero charge of gallium and indium oxides

被引：53

作者：

Kosmulski, M ^{[1
]}

机构：

[1] Abo Akad Univ, Dept Chem Phys, Turku 20500, Finland

[2] Tech Univ Lublin, Dept Electrochem, PL-20618 Lublin, Poland

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2001年 / 238卷 / 01期

关键词：

indium oxide; gallium oxide; point of zero charge; isoelectric point;

D O I：

10.1006/jcis.2001.7484

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrokinetic measurements and potentiometric titrations of indium oxide (commercially available reagent grade powder, washed with NaOH and HNO3 to remove strongly adsorbed species) indicate the pristine point of zero charge to be pH 8.7. The isoelectric point at pH 9 was obtained for gallium oxide prepared in the same way. These values match the pristine point of zero charge of alumina, but they are much higher than the values reported for indium oxide and gallium oxide in the literature. (C) 2001 Academic Press.

引用

页码：225 / 227

页数：3

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