Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 14, Pages 4770-4779Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp40410a
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Funding
- University of Wollongong
- Australian Research Council (ARC) [DP1093952]
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Here, we report the fabrication of self-organized titania (TiO2) nanotube array supercapacitor electrodes through controlled phase transformation of TiO2, with aerial capacitances as high as 2.6 mF cm(-2), which far exceeds the values so far reported in the literature. The role of phase transformation in the electrochemical charge-discharge behaviour of nanocrystalline TiO2 nanotubes is investigated and discussed in detail. The ease of synthesis and the exceptional electrochemical properties make these nanotube arrays an alternative candidate for use in energy storage devices.
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