
Tungsten oxide is a sensing material that has good sensitivity and selectivity to toxic gases such as NO2 gas, so it has good prospects in fabrication of NO2 gas sensors. Because the application of NO2 gas sensor is of great significance to environmental protection and human health, tungsten oxide-based gas sensor to NO2 gas has always been one of the research hotspots of researchers at home and abroad. More details, please visit: http://tungsten-oxide.com/index.html According to the literature, as early as…