Formation of anatase and TiO from Ti thin film after anodic treatment and thermal annealing

Yu Lin Chung, Der Shin Gan, Keng Liang Ou, Shi Yung Chiou

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The phase transformation of anodized Ti film has been studied. Although X-ray diffraction detected only the amorphous TiO2 phase, transmission electron microscopy analysis showed that TiO nanocrystallites less than 10 nm in size were also present, which was further supported by x-ray photoelectron spectroscopy analysis. Anatase was found to appear gradually by annealing the as-anodized specimen in air at 500-550C, which was accompanied by a simultaneous disappearance of TiO nanocrystallites. In contrast, only rutile is formed by annealing the Ti film at the same temperatures. The results indicate that TiO can induce the formation of anatase, which is explained by the close similarity between their structures.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume158
Issue number10
DOIs
Publication statusPublished - 2011

ASJC Scopus subject areas

  • Electrochemistry
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics

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