Dielectric spectroscopy of polypyrrole–γ–Fe2O3 composites |
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| Affiliation: | 1. Department of Physics, GM Institute of Technology, Davangere 577 006, Karnataka, India;2. Department of Materials Science and Physics, Gulbarga University, Gulbarga 585 106, Karnataka, India;1. Department of Materials Chemistry, Nanchang Hangkong University, Nanchang 330063, PR China;2. School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, PR China;3. Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, PR China;1. Department of Physics, Osmania University, Hyderabad-500 007, Andhra Pradesh, India;2. Research Centre Imarat, Vigyanakancha, Hyderabad-500 069, India;1. M.N. Miheev Institute of Metal Physics, Ural Branch of Russian Academy of Sciences, Sofia Kovalevskaya St. 18, 620990 Ekaterinburg, Russia;2. Central Research Technological Institute “TECHNOMASH”, Ivan Franko St. 4, 121108 Moscow, Russia;1. Department of Physics Govt. P.G. College, Solan 173 212, India;2. Department of Physics Himachal Pradesh University, Summer-Hill, Shimla 171 005, India;1. Department of Chemistry, University College of Science, Osmania University, Hyderabad 500007, Telangana, India;2. Department of Physics, University College of Science, Osmania University, Hyderabad 500007, Telangana, India;1. Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China;2. College of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Zhengzhou 450001, China |
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| Abstract: | In situ polymerization of pyrrole was carried out in the presence of γ–Fe2O3 (FE) to synthesize polypyrrole–γ–Fe2O3 composites (PPy/FE) by chemical oxidation method. The PPy/FE composites have been synthesized with various compositions viz., 10, 20, 30, 40 and 50 wt.% of γ–Fe2O3 in pyrrole. The AC conductivity was studied in the frequency range 102–107 Hz. The dielectric behaviour was also investigated in the frequency range 102–107 Hz. The dimensions of γ–Fe2O3 particles in the matrix have a greater influence on the conductivity values and the observed dielectric values. |
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