EVALUATION OF BASICITY OF ALKALI METAL-DOPED MGO IN THE SCOPE OF CHANGE OF CARBONATE SPECIES

被引：0
|
作者：
KANNO, T
KOBAYASHI, M
机构：
来源：
ACID-BASE CATALYSIS II | 1994年 / 90卷
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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：
Four kinds of alkali metals were used as the modifier of the surface of MgO in order to evaluate basicity qualitatively and quantitatively. Doses of them changed the composition of CO2-derived species drastically: increased the intensity of IR absorption of unidentate carbonate and decreased the intensities of bidentate carbonate and linear CO2. This result was associated with the change of acid/base properties of the surface. More quantitative parameters were derived from the IR frequency of unidentate carbonate and the TPD profile, and these two parameters showed a linear correlation. This correlation seemed to make it possible to characterize basicity comparably with two techniques.
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页码：207 / 212
页数：6
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