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- Title
Solid-state synthesis and characterization of polyaniline/nano-TiO<sub>2</sub> composite.
- Authors
Abdiryim, Tursun; Ubul, Aminam; Jamal, Ruxangul; Tian, Yuchuan; Awut, Tunsagul; Nurulla, Ismayil
- Abstract
Polyaniline/nano-TiO2 composites with the content of nano-TiO2 varying from 6.2 wt % to 24.1 wt % were prepared by using solid-state synthesis method at room temperature. The structure and morphology of the composites were characterized by the Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV-vis) absorption spectra, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The electrochemical performances of the composites were investigated by galvanostatic charge-discharge measurement, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The results from FTIR and UV-vis spectra showed that the composites displayed higher oxidation and doping degree than pure PANI. The XRD and morphological studies revealed that the inclusion of nano-TiO2 particles hampered the crystallization of PANI chains in composites, and the composites exhibited mixed particles from free PANI particles and the nano-TiO2 entrapped PANI particles. The galvanostatic charge-discharge measurements indicated that the PANI/nano-TiO2 composites had higher specific capacitances than PANI. The composite with 6.2 wt % TiO2 had the highest specific capacitance among the composites. The further electrochemical tests on the composite electrode with 6.2 wt % TiO2 showed that the composite displayed an ideal capacitive behavior and good rate ability. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
- Subjects
SOLID state chemistry; POLYANILINES; TITANIUM dioxide; SYNTHESIS of Nanocomposite materials; TEMPERATURE effect; MOLECULAR structure; FOURIER transform infrared spectroscopy; ABSORPTION spectra
- Publication
Journal of Applied Polymer Science, 2012, Vol 126, Issue 2, p697
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.36857