CO2 gas sensing response of YPO4 nanobelts produced by a colloidal method

Influence of Mn Doping on the Sensing Properties of SnO<sub>2</sub> Nanobelt to Ethanol

“…The Sn(3d) band presents double peaks located at binding energies of 487.0 of Sn(3d 5/2 ) and 495.4 eV of Sn(3d 3/2 ), as shown in Figure 4(b). The separation distance between the two peaks is 8.4 eV, which confirms the formation of Sn 4+ oxidation state in SnO 2 nanobelts [24]. The Mn (2p) state can be separated into two peaks.…”

“…It is noted that the response increased drastically in the range of 10 -100 ppm, then moderately in 100 -600 ppm, and slowly in 600 -1000 ppm. The response tends to become saturated when ethanol concentration goes up, which can be attributed to the surface coverage of the adsorbed molecules [24]. The response of Mn:SnO 2 sensors are provided upon repeatedly ethanol, ethanediol, and acetone gases exposure/removal cycles, as displayed in Figure 7(f).…”

Poly(Ionic Liquid)‐Derived Carbon with Site‐Specific N‐Doping and Biphasic Heterojunction for Enhanced CO2 Capture and Sensing

“…(Please note that it is a competitive binding experiment, in which 2 % CO 2 is sensed in the presence of 98 % N 2 , that is, a majority of surface is saturated with N 2 .) Besides, NPCF‐10 shows fast recovery, outperforming many resistive sensors that require tens of seconds, and has little‐to‐no sensitivity toward humidity (Figure S19), which makes our approach superior to infrared spectrometry . As CO 2 concentration increases from 0.01 % to 2.0 %, the Δ R / R 0 peak increases from 0.90 % to 2.85 % (Figure S20), suggesting the dynamic range is higher than that of classical carbon‐based devices.…”

Poly(Ionic Liquid)‐Derived Carbon with Site‐Specific N‐Doping and Biphasic Heterojunction for Enhanced CO2 Capture and Sensing

“…[32] To illustrate the advantage of our system beyond "only" record values of sorption, we constructed aCO 2 sensor based on the resistance change of the fiber upon gas exposure (Figure 4a). Besides,NPCF-10 shows fast recovery,outperforming many resistive sensors that require tens of seconds, [33] and has little-to-no sensitivity toward humidity ( Figure S19), which makes our approach superior to infrared spectrometry. Figure 4b shows ap lot of DR/R 0 vs.t ime for aN PCF-10based CO 2 sensor at aCO 2 concentration of 2.0 %.…”

“…( Please note that it is ac ompetitive binding experiment, in which 2% CO 2 is sensed in the presence of 98 %N 2 ,that is,amajority of surface is saturated with N 2 .) Besides,NPCF-10 shows fast recovery,outperforming many resistive sensors that require tens of seconds, [33] and has little-to-no sensitivity toward humidity ( Figure S19), which makes our approach superior to infrared spectrometry. [11c] As CO 2 concentration increases from 0.01 %to2.0 %, the DR/R 0 peak increases from 0.90 %to2.85 %( Figure S20), suggesting the dynamic range is higher than that of classical carbon-based devices.…”