Communication Dans Un Congrès Année : 2024

Enhancing CO₂ sensitivity of a polymer-based RF sensor through functionalization

Résumé

In this study, we present a dual Radio Frequency sensor coupled with a polymer sensitive material for Carbone dioxide gas detection. A commercially available polymer underwent functionalization to produce a derivative polymer with enhanced properties. The sensing performances of both polymers, when integrated with the RF transducer, were evaluated. The results demonstrate that functionalization led to an increased sensitivity to CO2 while simultaneously reducing sensitivities to relative humidity (%RH) and temperature. The functionalized material exhibited good reversibility and repeatability, displaying a sensitivity of 17.3 MHz/ppm to CO2 at 0% RH, in comparison to the commercial polymer with a sensitivity of 1.35 MHz/ppm. Nevertheless, it is important to note that the sensor's CO2 sensitivity is compromised when exposed to %RH levels exceeding 0. Moreover, the sensor demonstrated a high specificity during tests involving alternative gaseous compounds such as CO, NO2, and O3.
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hal-04612355 , version 1 (17-01-2025)

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Bernard Bobby Ngoune, Meriem Kreddia, Sandrine Bernardini, Marc Bendahan, Eric Cloutet, et al.. Enhancing CO₂ sensitivity of a polymer-based RF sensor through functionalization. IEEE Applied Sensing Conference (APSCON), Jan 2024, Goa, India. pp.1-4, ⟨10.1109/APSCON60364.2024.10465928⟩. ⟨hal-04612355⟩
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