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https://doi.org/10.1007/s11431-010-4052-y
Copy DOIJournal: Science China Technological Sciences | Publication Date: Aug 10, 2010 |
Citations: 13 |
Based on the study of a new type of conducting polymer poly (3, 4-ethylenedioxythiophene) (PEDOT), this paper focuses on the preparation and the materials properties of PEDOT nanoparticles made by reversed micelle method. Investigations on optical, electrical and the thermal stability of PEDOT nanoparticles were carried out. The main results were as follows: The small-sized PEDOT nanoparticles were prepared by different methods, such as ultraviolet/visible (UV-Vis) spectroscopy, fourier-transform infrared (FT-IR) spectrum, scanning electron microscopy (SEM) and so on. The Bragg peaks of nanoparticles at 6.7°, 12.7°, 25° were observed by XRD and the good orientation of molecular chain was attributed to the effective doping of toluene-p-sulfonic acid, which also resulted in an enhancement of thermal stability of nanoparticles compared with the conventional PEDOT. Furthermore, the gas sensitivity of nanoparticles deposited on quartz crystal microbalance (QCM) was studied and the nanopartices deposited device exhibited excellent sensitivity to HCl gas at low concentration. Gas sensitivity of the nanoparticles by the reverse micelle was better than that of the common PEDOT particles.
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