Carbon-supported ultra-thin anatase TiO2 nanosheets for fast reversible lithium storage

Chen, Jun Song, Liu, Hao, Qiao, Shi Zhang and Lou, Xiong Wen (David) (2011) Carbon-supported ultra-thin anatase TiO2 nanosheets for fast reversible lithium storage. Journal of Materials Chemistry, 21 15: 5687-5692. doi:10.1039/c0jm04412a


Author Chen, Jun Song
Liu, Hao
Qiao, Shi Zhang
Lou, Xiong Wen (David)
Title Carbon-supported ultra-thin anatase TiO2 nanosheets for fast reversible lithium storage
Formatted title
Carbon-supported ultra-thin anatase TiO2 nanosheets for fast reversible lithium storage
Journal name Journal of Materials Chemistry   Check publisher's open access policy
ISSN 0959-9428
1364-5501
Publication date 2011-04-21
Sub-type Article (original research)
DOI 10.1039/c0jm04412a
Open Access Status Not Open Access
Volume 21
Issue 15
Start page 5687
End page 5692
Total pages 6
Place of publication Cambridge, U.K.
Publisher Royal Society of Chemistry
Collection year 2012
Language eng
Formatted abstract
This work reports a two-step method to synthesize carbon-supported ultrathin anatase TiO2 nanosheets (C-TiO2 NSs). Three samples with distinct structures were prepared via the assembly of these unique C-TiO2 NSs, including solid TiO2 hierarchical spheres and their hollow counterparts, as well as randomly-oriented C-TiO2 NSs. Specifically, the organic additive (diethylenetriamine) serves as both the capping agent during the initial solvothermal synthesis that stabilizes the (001) facets of anatase TiO2 and also the carbon source during the subsequent carbonization process. When evaluated for electrochemical lithium storage, all three samples assembled from carbon-supported anatase TiO 2 NSs exhibit high reversible capacities with superior cyclic capacity retention at a high current rate. This enhanced lithium storage performance could be attributed to the ultrathin NS structure allowing efficient Li+ ion diffusion, as well as the effective nanocarbon support granting better structural stability. These findings suggest that carbon-supported TiO2 NSs may be used as a promising anode material for high-power lithium-ion batteries.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Tue, 03 May 2011, 13:51:40 EST by Hao Liu on behalf of Functional Nanomaterials