Acetaldehyde chemical sensor based on molecularly imprinted polymer polypyrrole

Debliquy, M.;Dony, N.;Lahem, D.;Tang, Xiaohui;Olivier, M.-G.;et.al.
(2016) Procedia Engineering — Vol. 168, n° Available online 4 January 2017, p. 569-573 (2016)

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Authors
  • Debliquy, M.Materials Science department, University of Mons, rue de l’Epargne, 56 7000 Mons Belgium
    Author
  • Dony, N.Materials Science department, University of Mons, rue de l’Epargne, 56 7000 Mons Belgium
    Author
  • Lahem, D.Materia Nova, avenue Copernic, 1 7000 Mons Belgium
    Author
  • Tang, XiaohuiUCLouvain
    Author
  • Raskin, Jean-PierreUCLouvain
    Author
  • Olivier, M.-G.Materials Science department, University of Mons, rue de l’Epargne, 56 7000 Mons Belgium
    Author
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Abstract
This paper presents a chemical sensor based on molecularly imprinted polypyrrole for acetaldehyde detection. This molecule belongs to the family of volatile organic compounds (VOC's) and is known for its toxicity. The sensor working principle is the measurement of conductivity variations of polypyrrole films deposited on interdigitated electrodes. The molecularly imprinted polypyrrole (MIP) films are deposited on the electrodes by direct electropolymerization in a bath containing pyrrole monomer, acetonitrile as solvent and acetaldehyde as template. Non imprinted polypyrrole (NIP) films are prepared in the same conditions without template. The behaviour of both films is compared by mass adsorption measurements using a quartz crystal microbalance and impedance measurements as well. The MIP-based sensors show a rapid and reversible response to acetaldehyde in the ppm range while NIP gives an insignificant signal.
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Debliquy, M., Dony, N., Lahem, D., Tang, X., Zhang, C., Raskin, J.-P., & Olivier, M.-G. (2016). Acetaldehyde chemical sensor based on molecularly imprinted polymer polypyrrole. Procedia Engineering, 168(Available online 4 January 2017), 569-573. https://doi.org/10.1016/j.proeng.2016.11.527 (Original work published 2016)