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H2 sensing response of the CeO2-Pd-PDA/rGO sensor towards 4000 and 6000 ppm H2 at various relative humidity and 100 °C under UV (365 nm) illumination.
| H2 Conc (ppm) | Response (%) | |||||
|---|---|---|---|---|---|---|
| 0% RH | 10% RH | 15% RH | 20% RH | 25% RH | 30% RH | |
| 4000 | 160 | 217 | 361 | 225 | 192 | 220 |
| 6000 | 172 | 349 | 416 | 373 | 333 | 257 |
