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Title: Self-supported formation of needlelike Co3O4 nanotubes and their application as lithium-ion battery electrodes
Authors: Lou, X.W.
Deng, D.
Lee, J.Y. 
Feng, J.
Archer, L.A.
Issue Date: 18-Jan-2008
Citation: Lou, X.W., Deng, D., Lee, J.Y., Feng, J., Archer, L.A. (2008-01-18). Self-supported formation of needlelike Co3O4 nanotubes and their application as lithium-ion battery electrodes. Advanced Materials 20 (2) : 258-262. ScholarBank@NUS Repository.
Abstract: A one-step self-supported topotactic transformation method for the formation of needlelike Co3O4 nanotubes and its potential application as lithium-ion battery electrodes are discussed. The loosely organized β-Co(OH)2 nanoplatelets undergo was treated with air to undergo a thermodynamically favorable oxidation reaction and the solid materials in the core region of the nanoneedles are evacuated through dissolution and reoxidation/deposition. High-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) were used for characterization of the nanoneedles surface. Time-dependent XRD patterns were monitored to study the topotactic transformation during the formation of nanotubes. The as-prepared needlelike nanotubes were shown to have improved cycle life and high rate capability with nearly 100% capacity retention for over 30 cycles.
Source Title: Advanced Materials
ISSN: 09359648
DOI: 10.1002/adma.200702412
Appears in Collections:Staff Publications

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