Carbon Nanorings and Their Enhanced Lithium Storage Properties

A method involving catalytic growth of carbon nanorings (CNRs) with an outer diameter of ∼20 nm and axial length of ∼1 nm in the confined interlayer galleries of a layered double hydroxide host co‐intercalated with a carbon source and charge‐balancing anion is reported. The as‐prepared CNRs with ope...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2013-02, Vol.25 (8), p.1125-1130
Main Authors: Sun, Jie, Liu, Haimei, Chen, Xu, Evans, David G., Yang, Wensheng, Duan, Xue
Format: Article
Language:English
Subjects:
anode materials
Carbon
Carbon - chemistry
carbon nanorings
confined interlayer galleries
Discharge
Electrochemical Techniques
Electrodes
Galleries
Hydroxides - chemistry
Interlayers
layered double hydroxides
Lithium
Lithium - chemistry
lithium-ion batteries
Nanocomposites
Nanomaterials
Nanostructure
Nanostructures - chemistry
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Summary:A method involving catalytic growth of carbon nanorings (CNRs) with an outer diameter of ∼20 nm and axial length of ∼1 nm in the confined interlayer galleries of a layered double hydroxide host co‐intercalated with a carbon source and charge‐balancing anion is reported. The as‐prepared CNRs with open tips and a ratio of length to diameter (L/d) of much less than 1 exhibit excellent lithium storage performance, especially large reversible specific capacity under high‐rate charge and discharge.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201203108