Preparation and Electrochemical Properties of VO2(B) Nanobelts

Abstract:

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VO2(B) nanobelts have been successfully prepared in V2O5 and water mixed suspension assisted by polyvinyl alcohol (PVA) via a mild hydrothermal approach. The as-obtained VO2 nanobelts are several hundred nanometers to several micrometers long, typically 100-300 nm wide and about 20-30 nm thick. It was found that PVA could not only act as the reducing reagent but also as the structure-directing reagent. Besides, the PVA-assisted solid-solution-solid (SSS) transformation mechanism was proposed to illuminate the possible formation mechanism of VO2(B) nanobelts. Furthermore, the electrochemical properties of VO2(B) nanobelts were studied and they exhibited a high initial discharge capacity of 268 mAh/g, indicating that VO2(B) nanoblets are promising electrode materials in lithium battery.

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Periodical:

Edited by:

Linli Xu, Wenya Tian and Elwin Mao

Pages:

327-331

DOI:

10.4028/www.scientific.net/AMM.80-81.327

Citation:

H. B. Li et al., "Preparation and Electrochemical Properties of VO2(B) Nanobelts", Applied Mechanics and Materials, Vols. 80-81, pp. 327-331, 2011

Online since:

July 2011

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Price:

$35.00

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