ON A THERMODYNAMIC LIMITATION OF THE WATER-GAS POTENTIOMETRY USING SOLID-ELECTROLYTE CELL

被引:2
|
作者
HARTUNG, R
MOBIUS, HH
机构
[1] Institut für Physikalische Chemie, Universität Greifswald, Greifswald, D-17489
来源
关键词
D O I
10.1007/BF00323459
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Possibilities of the water-gas potentiometry using oxide ion-conducting solid electrolytes may be restricted by side reactions in the gas being analyzed. Changes in electrode potentials caused by simultaneous interfering equilibria in the water gas were investigated over a temperature range 1200 to 400-degrees-C for different initial gas compositions. Formation reactions of carbon and methane proved to be the side reactions which can be responsible for potential changes. Limits for the use of the analytical method are shown by graphs with deviations from the ideal values.
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页码:571 / 574
页数:4
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