Fig. 7From: Ag Nanoparticles Sensitized In2O3 Nanograin for the Ultrasensitive HCHO Detection at Room TemperatureResponses of pure In2O3, 1%Ag-In2O3, 3%Ag-In2O3, 5%Ag-In2O3, and 7%Ag-In2O3 gas sensors to 5 ppm gaseous formaldehyde in the operating temperature range from 30 to 300 °CBack to article page