Fast and low concentration detection of liquefied petroleum gas by Au-activated ZnO sensor

The enhanced sensing properties of MOS-based resistive gas sensors by Au functionalization: a review

“…Currently, gas sensors are indispensable in daily life, contributing to critical aspects of industrial safety, such as detecting hazardous gases like CO, [6][7][8] CH 4 , 9,10 and other flammable, explosive, and toxic gases. [11][12][13][14] In the field of environmental monitoring, sensing agents are necessary to monitor toxic and harmful gases, such as NO 2 , 15-17 SO 2 , 18 H 2 S, [19][20][21] and indoor pollutants such as toluene 22,23 and formaldehyde. [24][25][26] In the field of agriculture, the detection of CO 2 27,28 is beneficial for regulating crop growth environments.…”

Enhanced LPG Sensing Properties of Nanograined ZnO Films: Effect of Pd Sensitization

“…The ultrathin Au layer (3 nm) was coated on interconnected ZnO sheets by evaporation method. [ 16 ] The Au:ZnO sheets have shown LPG response of 59% under the exposure of 1000 ppm at 573 K. It is also noteworthy that Au:ZnO sensor have shown fast response and recovery time (18 and 36 s) and 30 day stability.…”