Effects were shown for the composition and post-synthesis heat treatment in an oxygen atmosphere on the electrochemical properties of nanocomposites derived from polypyrrole (PPy) and a V2O5 xerogel with host–guest structure. PPy0.05V2O5 was found to have the highest specific discharge capacity of about 290 mA·h/g and high stability upon prolonged charge-discharge cycling among the PPyxV2O5 nanocomposites prepared (where x = 0.1, 0.05, 0.025). Post-synthesis heat treatment in an oxygen atmosphere leads to oxidation of the reduced portion of the inorganic nanocomposite component and nanostructurization of the composite with formation of nanofibers that facilitate a considerable increase in the specific capacity and stability upon cycling.
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Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 51, No. 3, pp. 156-162, May-June, 2015.
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Posudievsky, O.Y., Kozarenko, O.A., Dyadyun, V.S. et al. Effect of the Composition and Post-Synthesis Heat Treatment on the Electrochemical Characteristics of Polypyrrole/V2O5 Nanocomposites Prepared by a Mechanochemical Method. Theor Exp Chem 51, 163–169 (2015). https://doi.org/10.1007/s11237-015-9411-0
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DOI: https://doi.org/10.1007/s11237-015-9411-0