Review Article
SnO2 Nanostructure as Pollutant Gas Sensors: Synthesis, Sensing Performances, and Mechanism
Table 2
Response and recovery times, (p)-based SnO2 for SO2 gas sensors.
| | Senors | Composition | Sensor response (%) | 40% recovery time (s) | 70% recovery time (s) | | MgO | V2O5 |
| | SnO2(p)Mg5 | 5 | — | 52,1 | 1255 | — | | SnO2(p)Mg1V1 | 1 | 1 | 18,2 | 130 | 325 | | SnO2(p)Mg5V1 | 5 | 1 | 38,4 | 250 | 770 | | SnO2(p)Mg10V1 | 10 | 1 | 51,3 | 1940 | — | | SnO2(p)Mg5V2 | 5 | 2 | 44,2 | 230 | 625 | | SnO2(p)Mg5V5 | 5 | 5 | 24,4 | 180 | 415 |
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