Fig. 3: Sensing performances of SnO2/Pdatom based sensor to H2 gas. | Communications Materials

Fig. 3: Sensing performances of SnO2/Pdatom based sensor to H2 gas.

From: Hydrogen sensing with high-performance via O- ion spillover at Pd single atoms stabilized SnO2 interface

Fig. 3

a The relation between gas response and working temperature toward 10 ppm H2 for sensors based pure SnO2, SnO2/PdO, SnO2/Pdatom and SnO2/Pdnano, respectively, b response time comparison, and c recovery time comparison toward a range concentration of H2 from 0.5–100 ppm for above four different sensors, d the dynamic resistance change, and e the corresponding response value variation and f the corresponding relation curve between H2 gas concentration and gas response value at wide concentration range for H2 gas sensing of SnO2/Pdatom-based sensors contrasted with reference sensors at 170 °C, g the dynamic resistance change and h the corresponding response value variation at low concentration range for the H2-sensing property of SnO2/Pdatom-based sensors contrasted with reference sensors at 170 °C, i the selectivity evaluation of SnO2/Pdatom-based sensors to H2 gas at 170 °C.

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