Preparation and capacitance behavior of nickel oxide-titania nanocomposite

Yibing Xie, Chuanjun Huang, Li Min Zhou, Haitao Huang, Jian Lu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

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-2due to the intensive loading of nickel oxide.
Original languageEnglish
Title of host publicationInternational Conference on Smart Materials and Nanotechnology in Engineering
Volume6423
DOIs
Publication statusPublished - 1 Dec 2007
EventInternational Conference on Smart Materials and Nanotechnology in Engineering - Harbin, China
Duration: 1 Jul 20074 Jul 2007

Conference

ConferenceInternational Conference on Smart Materials and Nanotechnology in Engineering
Country/TerritoryChina
CityHarbin
Period1/07/074/07/07

Keywords

  • Capacitance
  • Electrodeposition
  • Nickel oxide-titania nanocomposite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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