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This paper focuses on the gas sensing properties of the mixed-potential-type yttria stabilized zirconia (YSZ)-based NO2 sensor with NiO sensing electrode. The sensing characteristics of the sensors have been improved by controlling the microstructure of NiO sensing electrode synthesized with the microwave. The microstructure of NiO strongly depended on the microwave treatment temperature and the sintering...
Solid state electrochemical sensors using yttria-stabilized zirconia (YSZ) plate and Cr2O3-WO3 nanocomposites were fabricated. The effects of the sintering temperature on the electrode microstructure were investigated. It was found that the sensor sintered at 1000 °C exhibited larger sensitivity to NO2 in the examined range of 20–300ppm than other sensors sintered at 800 °C, 900 °C, and 1100 °C; and...
A NASICON-based electrochemical device attached with an oxide electrode was developed for the detection of Cl2 in air at high temperature. Among the oxides tested, Cr2O3 was found to be the best suited for the sensing electrode. The ΔEMF value of the device attached with Cr2O3 was almost linear with the logarithm of 5–50 ppm Cl2 concentration. It was also observed that the sensor showed a speedy response...
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