Fast synthesis of cerium oxide nanoparticles and nanorods

Feng Gao, Qingyi Lu, Sridhar Komarneni

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


The microwave-hydrothermal method has been investigated for the fast synthesis of rare earth cerium oxide (CeO 2) nanoparticles and nanorods. This approach combines the advantages of both hydrothermal and microwave heating techniques. It is facile, rapid, energy-saving, and environmentally-benign and leads to high-yields. The average sizes of the obtained CeO 2 nanoparticles could be adjusted from ∼1.6 nm to ∼20 nm. Moreover, by changing cerium source and adjusting the amount of the added ammonia water, CeO 2 nanorods could be synthesized under microwave-assisted conditions for the first time. No calcination process or surfactant is required in our experiments for both CeO 2 nanoparticles and nanorods. The ultraviolet and visible (UV-vis) spectra show the obvious size-dependence of the position of the absorbance peak. The Brunaur Emmett Teller (BET) nitrogen adsorption indicates that these nanoparticles and nanorods have high specific surface areas, which are needed for potential applications in many fields. Compared with conventional hydrothermal method, microwave-assisted hydrothermal method shows its advantages of rapidity, convenience and perhaps cost-effectiveness and could be extended to the synthesis of other nanoparticles and nanorods.

Original languageEnglish (US)
Pages (from-to)3812-3819
Number of pages8
JournalJournal of Nanoscience and Nanotechnology
Issue number12
StatePublished - Dec 2006

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics


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