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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.
Yibing Xie,Chuanjun Huang,Limin Zhou,Haitao Huang, andJian Lu
"Preparation and capacitance behavior of nickel oxide-titania nanocomposite", Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642320 (1 November 2007); https://doi.org/10.1117/12.779816
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Yibing Xie, Chuanjun Huang, Limin Zhou, Haitao Huang, Jian Lu, "Preparation and capacitance behavior of nickel oxide-titania nanocomposite," Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642320 (1 November 2007); https://doi.org/10.1117/12.779816