Fig. 7: Sensing performances of composite PdCo NP/PMMA sensors. | Nature Communications

Fig. 7: Sensing performances of composite PdCo NP/PMMA sensors.

From: Sub-second and ppm-level optical sensing of hydrogen using templated control of nano-hydride geometry and composition

Fig. 7

a Time-resolved ΔT/T response of Pd80Co20 \({{\rm{NP}}}_{5}^{50}\)/PMMA to 2 pulses of 2% H2 followed by 9 pulses of 2% H2 + 5% CH4, 2% H2 + 5% CO2, and 2% H2 + 0.2% CO; and b normalized sensor signal to the one obtained with 2% H2 in synthetic gas flow. The error bars denote the standard deviation from 9 cycles. c Time-resolved ΔT/T response of Pd80Co20 \({{\rm{NP}}}_{5}^{50}\)/PMMA to 9 pulses of 2% H2 with different RH and d normalized sensor signal one obtained with 2% H2 in dry condition. All measurements were performed using synthetic gas as carrier gas. The green shaded areas in b and d indicate the ±20% deviation limit from the normalized ΔT/T response with 2% H2.

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