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Comparison between H2 sensing in Air and in N2. Reprinted with permission from [6]. Copyright 2014 Sensors and Actuators B: Chemical.
| Temperature | Concentration | Hydrogen in Nitrogen | Hydrogen in Air | ||||
|---|---|---|---|---|---|---|---|
| Response (%) | Response Time (s) | Recovery Time (s) | Response (%) | Response Time (s) | Recovery Time (s) | ||
| 50 °C | 1% | 15.4 | 10 | 31 | 10.2 | 40 | 430 |
| 0.50% | 9.1 | 8 | 24 | 4.39 | 44 | 340 | |
| 0.40% | 7.24 | 7 | 24 | 3.63 | 44 | 280 | |
| 0.30% | 5.11 | 4 | 20 | 2.51 | 40 | 234 | |
| 0.20% | 2.73 | 3 | 18 | 1.2 | 41 | 150 | |
| 0.10% | 1.15 | 3 | 10 | 0.48 | 33 | 82 | |
