P1.6.5 NASICON-based CO2 sensor operative at room temperature with Li2CO3-based auxiliary as a sensing electrode

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A Potentiometric NASICON (Na3Zr2Si2PO12)-based CO2 sensor operative at room temperature was fabricated by combining with a metal oxide (ITO: indium tin oxide) and Li2CO3-In2O3 (4:1 in molar ratio) auxiliary as a sensing electrode, and its CO2 sensing properties were examined under 30% RH (relative humidity) in the temperature range of 30 to 100 °C. When the Li2CO3-In2O3-attached sensor was operated in the range of 250 to 2500 ppm CO2 at 30 °C, the EMF (electromotive...