Fig. 10. (a) Sensor response plot of 5% rGO/WO3 on exposure to NH3 (10–100 ppm). (b) Sensing performance of 5% rGO/WO3 towards 10 ppm NH3 under different humidity conditions. (c) Reproducibility of 5% rGO/WO3 on exposure to NH3 (60 ppm) at room temperature. (d) Stability of the 5% rGO/WO3 on exposure to NH3 (10 and 100 ppm) over a period of 30 days.
