Synthesis of bundle-like CeO2 nanofibers and their sub-microstructures

Ruixing Li, Cong Fu, Chengqiang Li, Shu Yin, Yue Zhang, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

The simultaneous control of size, morphology, and size distribution of particles is a challenging topic for powder synthesis, and one-dimensional (1-D) nanostructures have attracted increasing attention due to their specific properties. In the present study, 1-D CeO2 was synthesized via a solvothermal treatment using Ce(NO3)3·6H 2O and CO(NH2)2 in ethanol without the use of any template or surfactant. A SEM study revealed 1-D CeO2 fibers with perfect profile, well-dispersed state, and more uniform size distribution. The diameter of the fibers was about 50nm and the length was 200-800 nm. An in-depth TEM observation revealed that a 1-D profile was formed by agglomeration of large numbers of nanoparticles during an early stage of the reaction. Then, the nanoparticles were gradually fused together to form a 1-D fiber with a smooth surface and a sub-microstructure, namely, the CeO2 fibers were assembled from many sub-nanofibers. Finally, some possible evolution mechanisms for the formation of bundlelike CeO2 nanofibers were discussed.

Original languageEnglish
Pages (from-to)555-557
Number of pages3
JournalJournal of the Ceramic Society of Japan
Volume118
Issue number1378
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • CeO
  • Fibers
  • Nanosizes
  • Solvothermal
  • Synthesis

ASJC Scopus subject areas

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

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