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|Title:||Anisotropic Co3O4 porous nanocapsules toward high-capacity Li-ion batteries||Authors:||Liu, J.
|Issue Date:||2010||Citation:||Liu, J., Xia, H., Lu, L., Xue, D. (2010). Anisotropic Co3O4 porous nanocapsules toward high-capacity Li-ion batteries. Journal of Materials Chemistry 20 (8) : 1506-1510. ScholarBank@NUS Repository. https://doi.org/10.1039/b923834d||Abstract:||Anisotropic column-shaped porous Co3O4 nanocapsules were successfully synthesized via a solvothermal route using poly(vinyl pyrrolidone) (PVP) as capping reagent and final heat treatment in air. These anisotropic polycrystalline nanocapsules with the length of ∼1 μm and the diameter of ∼400 nm were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. Detailed proof indicated that the process of CoCO3 precursor growth was dominated by a nucleation and growth, self-organization, and then Ostwald ripening growth mechanism. These column-shaped Co3O 4 nanocapsules integrate two beneficial features: hollow cavity and porous shell. When evaluated for Li-ion batteries, they exhibit high reversible capacity (over 1000 mA h g-1) and good cycle performance. © The Royal Society of Chemistry 2010.||Source Title:||Journal of Materials Chemistry||URI:||http://scholarbank.nus.edu.sg/handle/10635/84875||ISSN:||09599428||DOI:||10.1039/b923834d|
|Appears in Collections:||Staff Publications|
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