P(VDF-HFP) Polymer as Sensing Material for Capacitive Carbon Dioxide Sensors

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P(VDF-HFP) Polymer as Sensing Material for Capacitive Carbon Dioxide Sensors
Title:
P(VDF-HFP) Polymer as Sensing Material for Capacitive Carbon Dioxide Sensors
Journal Title:
IEEE Sensors Journal
Publication Date:
01 July 2017
Citation:
Lei Zhang, Mojtaba Rahimabady, Sze Yu Tan, Chin Yaw Tan, Shuting Chen, Yi Fan Chen, Kui Yao, Aurelie Humbert, Dimitri Soccol, Keyan Zang and Michael Bolt, “P(VDF-HFP) Polymer as Sensing Material for Capacitive Carbon Dioxide Sensors," IEEE Sensors Journal, Vol. 17, No. 14, pp. 4349-4356, 15 Jul 2017. (DOI: 10.1109/JSEN.2017.2711000).
Abstract:
P(VDF-HFP) polymer is investigated through both theoretical and experimental approaches as a sensing material for capacitive CO2 sensor applications. Analysis based on the Clausius-Mossotti model shows that larger CO2 solubility and larger dielectric constant contribute to high CO2 capacitive sensitivity, which shows that P(VDF-HFP) polymer has significantly higher CO2 sensitivity compared to Teflon when they have comparable CO2 solubility, which is supported by subsequent experimental demonstration. Cross-sensitivity to humidity and temperature are evaluated and discussed for both P(VDF-HFP) and Teflon polymers. Fourier Transform Infrared spectroscopy (FTIR) analysis further reveals that the electrostatic interaction of P(VDF-HFP) with CO2 is stronger than Teflon. The theoretical analyses and experimental demonstration indicate that P(VDF-HFP) is a promising sensing material to be applied for capacitive CO2 sensors operated at room temperature.
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Funding Info:
This work was supported by a joint project between the Institute of Materials Research and Engineering, A∗STAR, and NXP Semiconductors under Project IMRE/13-3P1103.
Description:
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
ISSN:
1558-1748
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