Table 1 Sensing properties of Zn-doped SnO2 hierarchical nanostructures and other reported gas sensors working under different operating temperatures
Sensing materials (preparation) | [ethanol/glycol](ppm) | R a /R g | Tsens(°C) |
|---|---|---|---|
SnO2–ZnO thin film47 | 200 (ethanol) | 4.69 | 300 |
Zn-doped SnO2 nanorods30 | 200 (ethanol) | 17 | 270 |
ZnO-doped porous SnO2 nanospheres48 | 200 (ethanol) | 20 | 150 |
SnO2/ZnO hierarchical nanostructures49 | 100 (ethanol) | 6.2 | 400 |
Porous SnO2 Nanotubes7 | 200 (ethanol) 20 (glycol) | 16.7 17.2 | 300 |
Our work | 200 (ethanol) 100 (glycol) | 33 90 | 320 240 |
