Wearable piezoelectric nanogenerator-based hazardous gas monitoring gadget for self-powered ammonia early warning

Portable and wearable sensing devices are growing increasingly essential to people's lives as a result of the seriousness of air pollution and the rapid advancement of nanotechnology. The rGO/WO3/PVDF tertiary nanocomposite is employed as a monitoring device and boasts benefits like remarkable selectivity for ammonia hazardous gas, good responsiveness (Rg/Ra = 4.72, 50 ppm), and excellent linear sensitivity (10-500 ppm). Most crucially, the self-powered rGO/WO3/PVDF monitoring unit has a substantially quicker response/recovery time than the typical room-temperature semiconductor gas sensor. The viability of the tertiary nanocomposite for applications requiring self-powered ammonia gas sensing is demonstrated through a proof of concept demonstration.