Enhancement of the electrochemical capacitance of TiO 2 nanotube arrays through controlled phase transformation of anatase to rutile

Maryam Salari*, Seyed Hamed Aboutalebi, Alfred T. Chidembo, Ivan P. Nevirkovets, Konstantin Konstantinov, Hua Kun Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

119 Scopus citations

Abstract

Here, we report the fabrication of self-organized titania (TiO 2) nanotube array supercapacitor electrodes through controlled phase transformation of TiO 2, 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 TiO 2 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.

Original languageEnglish (US)
Pages (from-to)4770-4779
Number of pages10
JournalPhysical Chemistry Chemical Physics
Volume14
Issue number14
DOIs
StatePublished - Apr 14 2012
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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