XRD, TEM and thermal analysis of yttrium doped boehmite nanofibres and nanosheets

Y. Zhao, R. L. Frost, Veronika Vágvölgyi, E. R. Waclawik, J. Kristóf, Erzsébet Horváth

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Yttrium doped boehmite nanofibres with varying yttrium content have been prepared at low temperatures using a hydrothermal treatment in the presence of poly(ethylene oxide) surfactant (PEO). The resultant nanofibres were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM images showed the resulting nanostructures are predominantly nanofibres when Y-doping is less than 5%; in contrast Y-rich phases were formed when doping was around 10%. The doped boehmite and the subsequent nanofibres/nanotubes were analyzed by thermogravimetric and controlled rate thermal analysis methods. The boehmite nanofibres produced in this research thermally transform at higher temperatures than boehmite crystals and boehmite platelets. Boehmite nanofibres decompose at higher temperatures than non-hydrothermally treated boehmite.

Original languageEnglish
Pages (from-to)219-226
Number of pages8
JournalJournal of Thermal Analysis and Calorimetry
Volume94
Issue number1
DOIs
Publication statusPublished - Oct 1 2008

Keywords

  • Acicular
  • Boehmite
  • Nanofibre
  • Nanomaterial
  • Nanosheets
  • Nanotube

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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