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 1995, researchers have studied gas-sensing performance of different metal oxides on NO2, and finally they found that WO3 is the best sensing material. In 1996, researchers made WO3 film by vacuum sublimation, and developed a relatively stable NO2 gas sensor. After years of exploration, researchers are developing a tungsten oxide-based NO2 gas sensor that can be widely applied on a large scale with low operating temperature, high sensitivity and good selectivity.
