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Issue 22, 2016
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Precursor-mediated synthesis of double-shelled V2O5 hollow nanospheres as cathode material for lithium-ion batteries

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Abstract

Hollow micro-/nanostructures have a wide range of applications in catalysis, rechargeable batteries, drug delivery, and gas sensors, as well as energy storage and conversion. Herein, we report a facile, template-free, precursor-mediated method to synthesize V2O5 nanomaterials with three different architectures: double-shelled hollow nanospheres, single-shelled hollow nanospheres and nanoparticles. These V2O5 nanostructures are obtained via a simple thermal treatment in air of a “pre-synthesized” vanadyl glycerolate precursor, and their morphologies can be easily tuned by varying the thermal treatment temperatures. Electrochemical studies show that the double-shelled V2O5 hollow nanospheres as a cathode material for lithium-ion batteries deliver an initial capacity of 256.7 mA h g−1 with a Coulombic efficiency of nearly 100%, and their capacity is superior to the two other V2O5 nanostructures (i.e., single-shelled hollow nanospheres and nanoparticles), mainly due to their unique double-shelled hollow structure.

Graphical abstract: Precursor-mediated synthesis of double-shelled V2O5 hollow nanospheres as cathode material for lithium-ion batteries

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Supplementary files

Article information


Submitted
16 Jul 2015
Accepted
04 Nov 2015
First published
06 Nov 2015

CrystEngComm, 2016,18, 4068-4073
Article type
Paper

Precursor-mediated synthesis of double-shelled V2O5 hollow nanospheres as cathode material for lithium-ion batteries

F. Guo, M. Fan, P. Jin, H. Chen, Y. Wu, G. Li and X. Zou, CrystEngComm, 2016, 18, 4068
DOI: 10.1039/C5CE01398D

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