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One step synthesis of monoclinic VO2 (B) bundles of nanorods: Cathode for Li ion battery

Ganganagappa, Nagaraju and Siddaramanna, Ashoka (2012) One step synthesis of monoclinic VO2 (B) bundles of nanorods: Cathode for Li ion battery. In: MATERIALS CHARACTERIZATION, 68 . pp. 58-62.

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Official URL: http://dx.doi.org/10.1016/j.matchar.2012.03.010

Abstract

One of the metastable phases of vanadium dioxide, VO2(B) bundles of nanorods and microspheres have been synthesized through a simple hydrothermal method by dispersing V2O5 in aqueous quinol. The obtained products were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and electrochemical discharge-charge test for lithium battery. It was found that the morphologies of the obtained VO2(B) can be tuned by manipulating the relative amount of quinol. The electrochemical test found that the bundles of nanorods exhibit an initial discharge capacity of 171 mAh g(-1) and its almost stabilized capacity was reached to 108 mAh g(-1) after 47 cycles at a current density of 0.1 mA g(-1). The formation mechanism of the VO2(B) bundles of nanorods and microspheres was also discussed. (C) 2012 Elsevier Inc. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Elsevier B.V.
Keywords: Hydrothermal;Quinol; VO2(B);Li ion battery
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 14 Jul 2012 08:01
Last Modified: 14 Jul 2012 08:01
URI: http://eprints.iisc.ernet.in/id/eprint/44806

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