Acid-base properties of the surfaces of CdxHg1–xTe solid solutions

被引：0
|
作者：
O. A. Fedyaeva
机构：
[1] Omsk State Technical University,
来源：
Russian Journal of Physical Chemistry A | 2011年 / 85卷
关键词：
surface of Cd; Hg; Te solid solutions; acid-base properties; water adsorption;
D O I：
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学科分类号：
摘要：
The acid-base properties of actual CdTe and CdHgTe surfaces were investigated by means of non-aqueous conductometric titration for pHpzc determination, mechanochemistry, and UV spectroscopy. It was shown that the alkaline nature of their surface was due to the dissociative adsorption of atmospheric water flowing on the coordination-saturated surface atoms of cadmium with vacancy defects. The adsorbed water was involved in the formation of tellurium oxide TeO2 and H2TeO3 tellurous acid in the dispersion of CdTe and CdHgTe.
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页码：2233 / 2236
页数：3
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