Abstract
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.
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Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (No. 60574095), the Dean’s fund from Hefei Institute of Physical Science, Chinese Academy of Science, and the Knowledge Innovation Program of the Chinese Academy of Science. The authors would like to thank Drs. Tao Luo and Dr. Liangbao Yang for help with preparation of the manuscript.
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Chang, Q., Zhao, K., Chen, X. et al. Preparation of gold/polyaniline/multiwall carbon nanotube nanocomposites and application in ammonia gas detection. J Mater Sci 43, 5861–5866 (2008). https://doi.org/10.1007/s10853-008-2827-3
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DOI: https://doi.org/10.1007/s10853-008-2827-3