Synthesis of nanocrystalline Y2O3 in a specially designed atmospheric pressure radio frequency thermal plasma reactor

G. D. Dhamale, V. L. Mathe, S. V. Bhoraskar, S. N. Sahasrabudhe, S. Ghorui

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Synthesis of yttrium oxide nanoparticles in a specially designed radio frequency thermal plasma reactor is reported. Good crystallinity, narrow size distribution, low defect state concentration, high purity, good production rate, single-step synthesis, and simultaneous formation of nanocrystalline monoclinic and cubic phases are some of the interesting features observed. Synthesized particles are characterized through X-ray diffraction, transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, thermo-luminescence (TL), and Brunauer–Emmett–Teller surface area analysis. Polymorphism of the nanocrystalline yttria is addressed in detail. Synthesis mechanism is explored through in-situ emission spectroscopy. Post-synthesis environmental effects and possible methods to eliminate the undesired phases are probed. Defect states are investigated through the study of TL spectra.

Original languageEnglish
Article number416
JournalJournal of Nanoparticle Research
Volume17
Issue number10
DOIs
StatePublished - Oct 1 2015
Externally publishedYes

Keywords

  • Defect centers
  • Functional nanostructures
  • Nanosynthesis
  • Phase formation
  • RF plasma
  • Thermo-luminescence
  • Yttria nanoparticles

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