Journal of Nanoparticle Research

, Volume 5, Issue 1, pp 55–60

Synthesis and Optical Properties of SiO2-Coated CeO2 Nanoparticles

  • Teruoki Tago
  • Shizuka Tashiro
  • Yukiko Hashimoto
  • Katsuhiko Wakabayashi
  • Masahiro Kishida
Article

DOI: 10.1023/A:1024499516543

Cite this article as:
Tago, T., Tashiro, S., Hashimoto, Y. et al. Journal of Nanoparticle Research (2003) 5: 55. doi:10.1023/A:1024499516543

Abstract

Silica (SiO2)-coated ceria (CeO2) nanoparticles were prepared using water-in-oil microemulsion. Polyoxyethylene (15) cetylether and cyclohexane were used as a surfactant and organic solvent. SiO2-coated CeO2 nanoparticles were obtained by hydrolysis of metal alkoxide (tetraethylorthosilicate, TEOS) in the solution containing CeO2 precursor nanoparticles. The effects of CeO2 sources (Ce metal salt) and CeO2 particle-forming agents on the morphology of SiO2–CeO2 particles were investigated. Observation via transmission electron microscopy revealed that the type of particle-forming agent affected the nanoparticles' morphology and that CeO2 nanoparticles were spherically coated with SiO2 when using oxalic acid ((COOH)2) as a particle-forming agent of CeO2. Furthermore, the transmittance of the particles was high in the visible region (above 400 nm) and decreased in the ultraviolet region.

CeO2 SiO2-coated microemulsion nanostructured coating ultraviolet absorption 

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Teruoki Tago
    • 1
  • Shizuka Tashiro
    • 1
  • Yukiko Hashimoto
    • 1
  • Katsuhiko Wakabayashi
    • 1
  • Masahiro Kishida
    • 1
  1. 1.Chemical Engineering Group, Department of Materials Process Engineering, Graduate School of EngineeringKyushu UniversityHigashi-Ku, FukuokaJapan
  2. 2.Materials Process Engineering, Division of Materials Science and Engineering, Graduate School of EngineeringHokkaido UniversityKita-Ku, SapporoJapan