Research Article

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

Figure 3

(a) Sensitivity of the Cu-doped W18O49 (black line) and WO3 (blue line) sensor towards 10 ppm acetone under different operating conditions. (b) Different doping concentrations of copper in flower-like WO3.
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(b)