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Carbon nanofiber/polypyrrole nanocable as toxic gas sensor
Cited 106 time in
Web of Science
Cited 116 time in Scopus
- Authors
- Issue Date
- 2007-06-27
- Publisher
- Elsevier
- Citation
- Sensors and Actuators B 122 (2007) 7–13
- Keywords
- Vapor deposition polymerization ; Carbon nanofiber ; Polypyrrole ; Coaxial nanocable ; Sensor ; Toxic gas
- Abstract
- Carbon nanofiber (CNF)/polypyrrole (PPy) coaxial nanocables were successfully fabricated via one-step vapor deposition polymerization
(VDP), and their capability to perceive irritant gases such as ammonia (NH3) and hydrochloric acid (HCl) was systematically examined. The
Fourier transform infrared (FT-IR) spectra confirmed the formation of a PPy layer on the CNF surface. In addition, a transmission electron
microscopy (TEM) image represented the formation of an ultrathin and uniform PPy layer onto the surface of CNF. The thickness of the PPy layer
was conveniently controlled by varying the feeding amount of the corresponding monomer. The PPy-coated CNF exhibited an enhanced response
signal due to the presence of the thin and uniform conducting polymer layer, and their response was strongly dependent on the thickness of the
PPy layer.
- ISSN
- 0925-4005
- Language
- English
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