期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 20, 页码 4041-4046出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b927122h
关键词
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资金
- Spanish MICINN [MAT2008-05880]
- Junta de Andalucia [FQM 1447]
We report a novel procedure for the fabrication of vertical iron oxide nanowires with quite regular form and diameters ranging between 20 and 150 nm grown from a matrix of self-organized TiO2 nanotubes. The 3 mu m thick nanocomposite electrode presented here shows relatively high areal capacities of 468 mu Ah cm(-2) (1st reversible discharge) and 200 mu A h cm(-2) over 45 cycles at a rate of 25 mu A cm(-2) (specific capacities of 1190 and 510 mAh g(-1), respectively). Additionally, studies performed at kinetics of 6, 12.5, and 50 mu A cm(-2) suggest that this architectured nanocomposite material reveals excellent electrochemical performance with promising potential applications as nano-architectured negative electrodes for Li-ion microbatteries.
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