Improvement of the electrochemical properties of V sub(3O) sub(7) super(.H) sub(2)O nanobelts for Li battery application through synthesis of V sub(3O) sub(7) core-shell nanostructured composites

V sub(3O) sub(7) super(.H) sub(2)O core-shell structured composites have been successfully synthesized using V sub(3O) sub(7) super(.H) sub(2)O nanobelts as the cores and glucose as the source of carbon in the presence of sodium lauryl sulfate (SDS). The as-obtained V sub(3O) sub(7) super(.H) sub(2)...

Full description

Saved in:
Bibliographic Details
Published in:Current applied physics 2011-09, Vol.11 (5), p.1159-1163
Main Authors: Zhang, Yifu, Zhou, Min, Fan, Meijuan, Huang, Chi, Chen, Chongxue, Cao, Yuliang, Li, Houbin, Liu, Xinghai
Format: Article
Language:English
Subjects:
Battery
Carbon
Glucose
Nanocomposites
Nanomaterials
Nanostructure
Sodium
Sulfates
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:V sub(3O) sub(7) super(.H) sub(2)O core-shell structured composites have been successfully synthesized using V sub(3O) sub(7) super(.H) sub(2)O nanobelts as the cores and glucose as the source of carbon in the presence of sodium lauryl sulfate (SDS). The as-obtained V sub(3O) sub(7) super(.H) sub(2)O core-shell materials were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), elemental analysis (EA), Fourier transform infrared spectroscopy (FT-IR) and Raman spectrum. The thickness of the carbon shell can be controlled by the hydrothermal reaction time and the quantity of glucose. The surfactants have great influence on fabricating V sub(3O) sub(7) super(.H) sub(2)O core-shell composites, which have been discussed in detail. V sub(3O) sub(7) composites were subsequently obtained through thermal treatment with V sub(3O) sub(7) super(.H) sub(2)O. The electrochemical properties of V sub(3O) sub(7) core-shell composites were studied, indicating that the discharge capacity is still 151.2 mAh/g after 45 cycles, which is better than that of pure V sub(3O) sub(7) super(.H) sub(2)O nanobelts.
ISSN:1567-1739
DOI:10.1016/j.cap.2011.02.010