A Special Gas Sensor Based on Mesoporous WO3 Sensing Electrode in Medium Low Temperature For NO2 Detection
2022
Abstract Herein, a NO2 sensor based on mesoporous WO3 (M-WO3) sensing electrode and Ce0.8Gd0.2O1.9 (GDC) has been fabricated. This device shows high sensitivity in the range of 30-500 ppm NO2 concentration. at different temperatures. Meanwhile, the sensor response value (V) reached 99.78mV/decade for NO2 detection at 250°C. Moreover, a high NO2 selectivity, prominent repeatability and stability have been proved for this sensor. The optimization of mesoporous structure for sensing performance has also been discussed.
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