NO2 Sensors with Reduced Power Consumption Based on Mesoporous Indium Oxide
We report on sensing properties of ordered mesoporous nanostructures of In2O3 synthesized by nanocasting procedure towards NO2. The nanostructured material shows improved recover times and higher responses compared to non nanostructured material at low operating temperatures (100–150°C) thus allowing the use for low power NO2 sensors. These properties may be related to fast oxygen in and out propagation facilitated by an enhanced surface accessibility of the nanostructure.
KeywordsMesoporous Silica Indium Oxide Reduce Power Consumption Pore Wall Thickness Fast Oxygen