Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)

The Korean Vacuum Society (한국진공학회)
권호 표지

Facile Hydrothermal Synthesis and Characterization of the $CeO_2$ Nanorings

  • Arul, N. Sabari (Department of Electronic Engineering, Hanyang University) ;
  • Kim, Tae Whan (Department of Electronic Engineering, Hanyang University) ;
  • Mangalaraj, Devanesan (Devanesan Mangalaraj and Technology, Bharathiar University)
  • Published : 2013.02.18
Download PDF
⟨ Previous Next ⟩

Abstract

$CeO_2$ nanorings were synthesized by using a surfactant free hydrothermal method. The surface morphology, structural and optical properties of the synthesized $CeO_2$ was investigated by using scanning electron microscopy (SEM), X-ray diffraction (XRD), and ultraviolet-visible (UV) spectroscopy measurements. SEM images showed that the surface morphology of the formed $CeO_2$ appeared as nanorings. The XRD pattern of $CeO_2$ nanorings showed the presence of the polycrystalline $CeO_2$ phase readily indexed to the cubic fluorite structure of the $CeO_2$. The mean crystallite size of the $CeO_2$ was calculated using the Scherrer equation from the XRD line broadening of the (111) planes of the cubic $CeO_2$. The UV-Visible spectroscopy spectrum of the $CeO_2$ nanorings exhibited a strong UV absorption band around 350 nm.

Keywords