Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13211
Title: Supercapacitor application of nickel oxide-titania nanocomposites
Authors: Xie, Y
Huang, C
Zhou, L 
Liu, Y 
Huang, H
Keywords: Nano composite
Oxides
Electrical properties
Surface treatments
Scanning electron microscopy
Issue Date: 2009
Publisher: Pergamon Press
Source: Composites science and technology, 2009, v. 69, no. 13, p. 2108-2114 How to cite?
Journal: Composites science and technology 
Abstract: Highly-ordered and well-separated titania nanotube array was prepared by a potentiostatic anodization process. The desired nickel oxide-titania (NiO-TiO2) nanocomposites were constructed through incorporating nickel hydroxide into titania nanotubes by a one-cycle or multi-cycle alternate electrodeposition-oxidation and then a thermal dehydration process. By means of the microstructure promotion from particulate to flower-like NiO-TiO2 nanocomposite, specific capacitances were accordingly increased from 26.9 to 46.3 mF cm-2 and energy densities were also improved from 13.1 to 33.3 for mw s cm-2 in a redox supercapacitor application at a potential window of 1.2 V. The flower-like nanocomposite could keep 92.3% of initial capacitance even after 1000 cycles, presenting high operation stability in a continuous charge-discharge process. The superior energy-storage performance of flower-like nanocomposite was mostly attributed to its highly accessible redox reaction sites of three-dimensional NiO on TiO2 nanotubes.
URI: http://hdl.handle.net/10397/13211
ISSN: 0266-3538
EISSN: 1879-1050
DOI: 10.1016/j.compscitech.2009.01.018
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