Preparation of Flower-Like Cu-WO₃ Nanostructures and Their Acetone Gas Sensing Performance

Figure 4

(a) Sensitivity of flower-shaped WO₃ to different concentrations of acetone at 110°C. (b) Logarithmic linear fitting of sensibility and concentration. (c) Response () and recovery () time measured from the response-time data to 8 ppm acetone at an operating temperature of 110°C.

(a)

(b)

(c)