Thermally Evaporated Poly(Aniline-co-Fluoroaniline) Films for Ammonia Sensing

Sharma , A.L. and Kumar, Parveen and Deep, Akash (2013) Thermally Evaporated Poly(Aniline-co-Fluoroaniline) Films for Ammonia Sensing. Polymer-Plastics Technology and Engineering, 52 (7). pp. 737-742. ISSN 0360-2559 (Print), 1525-6111 (Online)

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Chemically synthesized poly(aniline-co-fluoroaniline) [poly(An-FAn)] powder were deposited on platinum substrates using thermal evaporation technique [poly(An-FAn)/vac]. These films were characterized using spectroscopic and cyclic voltammetry techniques. Electrical conductivity and molecular weight of copolymer have been measured. Results revealed that the structure of poly(An-FAn) is maintained during thermal evaporation. The response of poly(An-FAn)/vac films in terms of change in resistance with different concentration of ammonia shows its utility as a sensor material. The films show good response for ammonia. The sensing of 50 ppm of ammonia was achieved with response and recovery time of 13 and 80 seconds, respectively.

Item Type: Article
Uncontrolled Keywords: Ammonia sensing, Copolymer, Cyclic voltammetry, Poly(An-FAn), Thermal evaporation
Subjects: CSIO > Biochemistry
Divisions: Nano Science and Nano Technology
Depositing User: Ms. J Shrivastav
Date Deposited: 20 Mar 2014 15:13
Last Modified: 20 Mar 2014 15:13

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