Facile synthesis of single-crystalline CeO2 nanorods from aqueous CeCl3 solutions

Yasuha Higashine, Shinobu Fujihara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Fluorite-type CeO2 nanorods were synthesized from aqueous CeCl3 solutions containing polyethylene glycol, NaOH, and NaCl. The solutions were hydrothermally treated at 140°C, resulting in the formation of nanorod-like precipitates. Further annealing of the precipitates led to the growth into well-defined nanorods 5-10 nm in diameter and 50-200 nm in length. It was found that the addition of NaCl to the solution could enhance the one-dimensional growth of CeO2 and reduce the degree of aggregation. A high-resolution transmission electron microscopic observation revealed that the nanorod was single-crystalline and its growth direction was along the [110] axis of the cubic CeO2 structure. Our results then demonstrated that the unusually [110]-oriented CeO2 nanorods could be grown by a facile synthesis method.

Original languageEnglish
Pages (from-to)916-919
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume115
Issue number1348
DOIs
Publication statusPublished - 2007 Dec

Keywords

  • Aqueous solutions
  • Cerium dioxide
  • Crystal growth
  • Hydrothermal process
  • Nanorods

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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