Preparation of gold/polyaniline/multiwall carbon nanotube nanocomposites and application in ammonia gas detection

Composites of multiwall carbon nanotubes (MWNTs), polyaniline (PANI), and gold nanoparticles were prepared by one pot synthesis. Based on the interaction between aniline monomers and MWNTs, aniline molecules were adsorbed and polymerized on the surface of MWNTs. The nanocomposites were characterized...

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Bibliographic Details
Published in:Journal of materials science 2008-09, Vol.43 (17), p.5861-5866
Main Authors: Chang, Qifei, Zhao, Kai, Chen, Xing, Li, Minqiang, Liu, Jinhuai
Format: Article
Language:English
Subjects:
Ammonia
Aniline
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composites
Crystallography and Scattering Methods
Exact sciences and technology
Forms of application and semi-finished materials
Fourier transforms
Gold
Infrared analysis
Infrared spectroscopy
Materials Science
Multi wall carbon nanotubes
Nanocomposites
Nanoparticles
Photoelectric emission
Polyanilines
Polymer industry, paints, wood
Polymer Sciences
Sensors
Solid Mechanics
Spectrum analysis
Technology of polymers
Transmission electron microscopy
X ray photoelectron spectroscopy
X-ray diffraction
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Summary:Composites of multiwall carbon nanotubes (MWNTs), polyaniline (PANI), and gold nanoparticles were prepared by one pot synthesis. Based on the interaction between aniline monomers and MWNTs, aniline molecules were adsorbed and polymerized on the surface of MWNTs. The nanocomposites were characterized by transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoemission spectroscopy (XPS). The sensors based on Au/PANI/MWNT nanocomposites were tested for on-line monitoring of ammonia gas. The results show that the as-prepared sensors have superior sensitivity, and good repeatability upon repeated exposure to ammonia gas.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-008-2827-3