Shape-controlled synthesis of cobalt-based nanocubes, nanodiscs, and nanoflowers and their comparative lithium-storage properties

Chen, Jun Song, Zhu, Ting, Hu, Qiu Hong, Gao, Junjie, Su, Fabing, Qiao, Shi Zhang and Lou, Xiong Wen (2010) Shape-controlled synthesis of cobalt-based nanocubes, nanodiscs, and nanoflowers and their comparative lithium-storage properties. ACS Applied Materials and Interfaces, 2 12: 3628-3635. doi:10.1021/am100787w


Author Chen, Jun Song
Zhu, Ting
Hu, Qiu Hong
Gao, Junjie
Su, Fabing
Qiao, Shi Zhang
Lou, Xiong Wen
Title Shape-controlled synthesis of cobalt-based nanocubes, nanodiscs, and nanoflowers and their comparative lithium-storage properties
Journal name ACS Applied Materials and Interfaces   Check publisher's open access policy
ISSN 1944-8244
1944-8252
Publication date 2010-12-01
Sub-type Article (original research)
DOI 10.1021/am100787w
Open Access Status Not Open Access
Volume 2
Issue 12
Start page 3628
End page 3635
Total pages 8
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
Facile hydrothermal methods have been developed to synthesize large Co 3O4 nanocubes, β-Co(OH)2 hexagonal nanodiscs and nanoflowers. Samples are thoroughly characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller method, and thermogravimetric analysis. The Co3O4 nanocubes have an average size of about 350 nm with a perfect cubic shape, and the β-Co(OH)2 nanodiscs are uniform hexagonal platelets, whereas the β-Co(OH)2 nanoflowers are assembled from large sheetlike subunits. After thermal annealing in air at a moderate temperature, the as-prepared β-Co(OH) 2 samples can be converted into spinel Co3O4 without significant alterations in morphology. We have also investigated the comparative lithium storage properties of these three Co3O 4 samples with distinct morphologies. The nanoflower sample shows highly reversible lithium storage capability after 100 charge-discharge cycles. © 2010 American Chemical Society.
Keyword Cobalt-based
Nanocube
Nanodiscs
Nanoflower
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 2011 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Sun, 20 Mar 2011, 10:14:10 EST