论文信息 - Solid Electrolyte CO2 Sensor Using Binary Carbonate Electrode

Solid Electrolyte CO2 Sensor Using Binary Carbonate Electrode

A simple potentiometric CO2 sensor based upon a Na+-conducting solid electrolyte (NASICON) was found to be greatly improved in response time and water vapor-resistance by using a binary carbonate electrode of BaCO3–Na2CO3. For a wide range of CO2 concentration from 4 to 400000 ppm, the electromotive force examined at 823 K followed a Nernst’s equation excellently, with a 90% response time of as short as 8 s. Water vapor hardly affected the sensor characteristics, in contrast to the case of a pure Na2CO3 electrode.

[1] Y. Sadaoka,et al. Humidity sensor using sintered zircon with alkali-phosphate , 1985 .

[2] M. Gauthier,et al. Solid‐State Detectors for the Potentiometric Determination of Gaseous Oxides I . Measurement in Air , 1977 .

[3] Hiroaki Yanagida,et al. CO2 gas sensor usingβ-Al2O3 and metal carbonate , 1986 .

[4] Toshio Maruyama,et al. Potentiometric gas sensor for carbon dioxide using solid electrolytes , 1987 .

[5] Toshio Maruyama,et al. Recent developments of the sensors for carbon oxides using solid electrolytes , 1988 .

[6] Makoto Egashira,et al. Carbon Dioxide Sensor Consisting of K 2 CO 3 ‐ Polyethylene Glycol Solution Supported on Porous Ceramics I . Measurements of Carbon Dioxide Sensing Characteristics , 1989 .