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Proceedings Paper

In-situ preparation of PEDOT/V2O5 nanocomposite and its synergism for enhanced capacitive behavior
Author(s): P. Ragupathy; H. N. Vasan; N. Munichandraiah; N. Vasanthacharya
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Paper Abstract

Synthesis of poly (3,4-ethylenedioxythiophene)/V2O5 (PEDOT/V2O5) by in-situ oxidation of monomer (3,4-ethylenedioxythiophene) into crystalline nanostrip V2O5 using microwave hydrothermal technique is reported. The synthesized compounds are characterized by powder XRD, IR spectra, four probe conductivity and thermal analysis (TGA/DTA).The interlayer spacing of V2O5 upon intercalation of the polymer expands from 4.3 to 14 Å as observed in powder X-ray diffraction by exfoliation and restacking of the layers. The morphological changes of the compounds are further investigated using FE-SEM. The electrochemical properties are studied by CV and galvanostatic charge-discharge cycling. The initial SC of PEDOT/V2O5 (237 F g-1) is higher than that of either pristine V2O5 or PEDOT indicating the synergic effect of the nanocomposites.

Paper Details

Date Published: 17 May 2011
PDF: 11 pages
Proc. SPIE 8035, Energy Harvesting and Storage: Materials, Devices, and Applications II, 80350I (17 May 2011); doi: 10.1117/12.887682
Show Author Affiliations
P. Ragupathy, Indian Institute of Science (India)
H. N. Vasan, Indian Institute of Science (India)
N. Munichandraiah, Indian Institute of Science (India)
N. Vasanthacharya, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 8035:
Energy Harvesting and Storage: Materials, Devices, and Applications II
Nibir K. Dhar; Priyalal S. Wijewarnasuriya; Achyut K. Dutta, Editor(s)

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