Improving the gas sensing response of polyaniline via a porous carbon nanotube-based template
- Author(s): Wei Li 1 ; Panpan Guan 1 ; Aili Wei 1 ; Huaiping Zhang 1 ; Hui Zhai 2
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View affiliations
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Affiliations:
1:
Department of Material Science, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China;
2: Shenyang Products Quality Supervision and Inspection Research Institute, Shenyang 110023, People's Republic of China
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Affiliations:
1:
Department of Material Science, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China;
- Source:
Volume 10, Issue 4,
April 2015,
p.
206 – 208
DOI: 10.1049/mnl.2014.0638 , Online ISSN 1750-0443
© The Institution of Engineering and Technology
Received
14/12/2014,
Accepted
04/02/2015,
Published
11/03/2015
Tin metal was coated onto single-walled carbon nanotubes by sputtering and then thermally oxidised to form a stable tin oxide/single-walled carbon nanotubes porous template on glass substrate. Polyaniline (PANI) was coated onto this template through oxidative polymerisation. The nanocomposite was characterised by scanning electron microscopy, infrared spectra and Raman spectra. The sensor response of the nanocomposite to an aromatic organic compound (AOC) was investigated in the comparison with pure PANI. The results show that, upon exposure to the AOC, the conductivity of the sensor increases and the response of the nanocomposite is much higher than that of pure PANI.
Inspec keywords: sputter deposition; nanocomposites; gas sensors; infrared spectra; oxidation; nanosensors; tin compounds; polymerisation; wide band gap semiconductors; scanning electron microscopy; polymers; Raman spectra; nanofabrication; electrical conductivity; nanoporous materials
Other keywords: conductivity; stable tin oxide/single-walled carbon nanotubes porous template; nanocomposite; polyaniline gas sensing response; oxidative polymerisation; thermal oxidation; scanning electron microscopy; aromatic organic compound; SiO2; glass substrate; sputtering; infrared spectrum; Raman spectrum; SEM; C−SnO2
Subjects: Micromechanical and nanomechanical devices and systems; Fabrication of MEMS and NEMS devices; Microsensors and nanosensors; Chemical sensors; Chemical sensors; Sputter deposition
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