Solid‐State Detectors for the Potentiometric Determination of Gaseous Oxides: II . Measurements in Oxygen‐Variable Gases in the , , , System
- 1 October 1977
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 124 (10) , 1584-1587
- https://doi.org/10.1149/1.2133114
Abstract
This paper describes an extended application of potentiometric solid‐state detectors for measuring oxides in oxygen‐variable gases. The , , , system examined in Part I for oxide detection in air is studied here with respect to the total sulfur oxide and oxygen partial pressures. A study of the experimental parameters, operating temperatures, and the oxygen partial‐pressure range revealed the possibility of a simple method of compensating the effect of the oxygen partial pressure on the signal from the oxide detector. An entirely solid‐state device consisting of a potassium‐sulfate oxide detector, a stabilized‐zirconia oxygen detector, and usual electronic components is described, and results of tests with synthetic gas mixtures are presented. Experimental findings confirm calculations based on the electrode reactions and on the rapidly established equilibrium at the platinum electrode.Keywords
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