Anodic zirconia nanotubes: Composition and growth mechanism

F. Muratore, A. Baron-Wiecheć, T. Hashimoto, P. Skeldon*, G. E. Thompson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The compositions of porous anodic films formed on zirconium in glycerol/fluoride electrolytes are examined prior to and following ageing in the electrolyte. The initial films are shown to contain significant amounts of fluorine, with an F:O atomic ratio between 1.0 and 2.5, dependent on the water content of the electrolyte. A three-layered film morphology is indicated, which is related to the migration rates of film species, incorporating a fluoride-rich layer at cell boundaries and bases, and outer layers compositionally differentiated by the presence of carbon species. Preferential loss of fluorine during ageing suggests degradation of the fluoride-rich material.

Original languageEnglish
Pages (from-to)1727-1730
Number of pages4
JournalElectrochemistry Communications
Volume12
Issue number12
DOIs
StatePublished - Dec 2010
Externally publishedYes

Keywords

  • Anodizing
  • Ion beam analysis
  • Nanotubes
  • Transmission electron microscopy
  • Zirconium

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