Dip-coating decoration of AgO nanoparticles on SnO nanowires for high-performance HS gas sensors.

SnO nanowires (NWs) are used in gas sensors, but their response to highly toxic gas HS is low. Thus, their performance toward the effective detection of low-level HS in air should be improved for environmental-pollution control and monitoring. Herein, AgO nanoparticle decorated SnO NWs were prepared by a simple on-chip growth and subsequent dip-coating method.

An effective HS sensor based on SnO nanowires decorated with NiO nanoparticles by electron beam evaporation.

The highly toxic hydrogen sulphide (HS) present in air can cause negative effects on human health. Thus, monitoring of this gas is vital in gas leak alarms and security. Efforts have been devoted to the fabrication and enhancement of the HS-sensing performance of gas sensors.