Synthesis of Hollow ZnSnO₃ Nanospheres with High Ethanol Sensing Properties

Figure 3

(a) Gas response versus operating temperature of hollow ZnSnO₃ nanospheres sensors to different target gases with a concentration of 100 ppm, (b) dynamic response-recovery curves of the sensor to different concentrations of ethanol at 200°C, and (c) and (d) response-recovery curves of the sensor to 100 ppm ethanol at 200°C.

(a)

(b)

(c)

(d)