Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 42, Pages 13203-13208Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta12310c
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Funding
- Natural Science Foundation of China [51201117, 51104121]
- Major State Basic Research Development Program (973 Program) [2012CB722701]
- Scientific Research Fund of Wuhan Textile University
- Ministry of Education of China [1343-71134001002]
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Nanostructured Co3O4 in a novel hairy ball-like morphology is successfully synthesized from self-assembled hierarchical Co(CO3)(0.35)Cl-0.2(OH)(1.10)center dot 1.74H(2)O precursors via a facile hydrothermal method and subsequent annealing in air. The morphological evolution of the Co(CO3)(0.35)Cl-0.2(OH)(1.10)center dot 1.74H(2)O precursors is investigated by examining the different reaction times during the synthesis. First, fan-shaped microplates are formed, followed by nanowires grown on the surface of the plates. Subsequently, with an extended growth reaction time, the nanowires grow longer to form the hairy ball-like structures. The Co3O4, obtained from thermal decomposition of the Co(CO3)(0.35)Cl-0.2(OH)(1.10)center dot 1.74H(2)O precursor in air at 400 degrees C, exhibits highly reversible capacities as an anode material in lithium ion batteries, which retains 860 mA h g(-1) at 100 mA g(-1) after 50 cycles, with good cycling stabilities and rate capabilities.
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