[en] 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.
Research center :
CRIM - Ingénierie des matériaux
Disciplines :
Computer science Physics
Author, co-author :
Debliquy, Marc ; Université de Mons > Faculté Polytechnique > Science des Matériaux
Dony, Nicolas
Lahem, Driss
Tang, X.
Zhang, Chao
Raskin, J.-P.
Olivier, Marie-Georges ; Université de Mons > Faculté Polytechnique > Service de Science des Matériaux
Language :
English
Title :
Acetaldehyde Chemical Sensor based on Molecularly Imprinted Polypyrrole
Publication date :
06 January 2016
Journal title :
Procedia Engineering
ISSN :
1877-7058
Publisher :
Elsevier, Netherlands
Volume :
168
Pages :
569 - 573
Research unit :
F502 - Science des Matériaux
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
