Journal
SYNTHETIC METALS
Volume 162, Issue 15-16, Pages 1471-1477Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2012.05.012
Keywords
Polypyrrole; Nanoparticles; Electrical conductivity; EMI shielding
Funding
- University of Delhi, Delhi
- Department of Science and Technology (DST), New Delhi, India
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Polypyrrole (Ppy) nanoparticles were synthesized by surfactant directed chemical oxidation method. The synthesis of Ppy nanoparticles were confirmed by Fourier transform infrared spectroscopy and transmission electron microscopy. The prepared samples were tested for electromagnetic interference (EMI) shielding. It has been observed that the particle size of the Ppy nanoparticles decreases (53, 42, 28 nm) while the dc conductivity (3, 7,22 S/cm) and total shielding effectiveness (23, 46, 49 dB) increases with surfactant concentration for the Ppy samples (P1, P2, and P3). (C) 2012 Elsevier B.V. All rights reserved.
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