Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/40767
Title: Preparation and capacitance behavior of nickel oxide-titania nanocomposite
Authors: Xie, YB
Huang, CJ
Zhou, LM 
Lu, J
Huang, HT 
Keywords: Capacitance
Nanocomposites
Nickel
Oxides
Titanium
X-ray diffraction
X-rays
Scanning
Sodium
Composites
Issue Date: 2007
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2007, v. 6423, 642320 How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: Titania nanotube array with an average tube diameter of 110 nm and length of 700 nm was fabricated by a potentiostatic anodization on titanium metal sheet. Nickel oxide was then loaded into titania nanotubes by electrodepositon-electrooxidation and heating treatment processes. The morphology and microstructure of the nanocomposite were investigated by field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), and energy dispersive x-ray (EDX) analysis. Nickel oxide could well coat on titania nanotubes from inner wall to pore mouth with a high loading amount up to 36.4% of nickel-to-titanium atom ratio. Such a well-defined nickel oxide-titania/titanium nanotubular composite was designed as a functional electrode for an electrochemical capacitance application. The result of electrochemical characterization exhibits a highly reversible redox peaks by cyclic voltammetry in sodium hydroxide aqueous solution. High specific supercapacitance was accordingly achieved up to 7.8 mF cm-2 due to the intensive loading of nickel oxide.
Description: International Conference on Smart Materials and Nanotechnology in Engineering, Harbin, China, 1-4, July 2007
URI: http://hdl.handle.net/10397/40767
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.779816
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