Review Article

NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Figure 10

(a) SEM of LaFeO3. (b) SEM of NiO/LaFeO3. (c) Gas response of NiO/LaFeO3 and LaFeO3 under different temperatures at 10 ppm ethanol. (d) Response and recovery curves of NiO/LaFeO3 and LaFeO3 at 10 ppm ethanol. (e) Dynamic response curves of NiO/LaFeO3 and LaFeO3 to different ethanol concentrations at 240°C. (f) Gas response of NiO/LaFeO3 under 10 ppm different gases (reprinted/adapted by [138]).
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