Method of synthesis | Sensor working temperature (°C) | Target gas concentration (ppm) | Response | Response time (s) | Recovery time (s) | References |
---|---|---|---|---|---|---|
Hydrothermal | 220 | Ethanol 100 | 25.5a | 6 | 42 | [45] |
Hydrothermal | 300 | Ethanol 100 | 98.8b | 7 | 9 | [46] |
Solid state reaction | Room temperature | Ethanol 150 | 2.3b | 70 | 88 | [41] |
Pulsed laser deposition | Room temperature | Hydrogen sulphide 15 | 78c | 180 | 15 | [47] |
Hydrothermal | Room temperature | Ethanol 5 | 0.53d | 30 | 63 | Present work |
50 | 5.87d | 9 | 420 |