Crystalline evolution of various CeO2 morphology via a solvothermal method

Cong Fu, Ruixing Li, Qing Tang, Chengqiang Li, Shu Yin, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Preparation of cerium compounds with different structures and morphology is still a challenge in powder synthesis. CeOHCO3 and CeO2 have received widespread attention because of their potential applications. In this study, a solvothermal method with one-step precipitation was used to synthesize CeO2 with different structures and morphology without use of surfactant. The effects of different experimental conditions on the morphology of CeO2 were investigated. Both X-ray diffraction and SAED patterns revealed that products changed from a single CeOHCO3 phase to a mixture of CeOHCO3 and CeO2. A single CeO2 phase could always be obtained from CeOHCO3 by calcination in air at 673 K for 1 h. Moreover, the morphology of CeOHCO3 was retained. Thus CeO2 particles with different morphology, for example rod-like, prism-like, polygon-like, sphere-like, and cube-like, could be synthesized. Possible mechanisms of phase and morphology evolution are discussed.

Original languageEnglish
Pages (from-to)319-327
Number of pages9
JournalResearch on Chemical Intermediates
Volume37
Issue number2-5
DOIs
Publication statusPublished - 2011 Apr

Keywords

  • CeO
  • Morphology
  • Nanosize
  • Solvothermal
  • Synthesis

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint Dive into the research topics of 'Crystalline evolution of various CeO<sub>2</sub> morphology via a solvothermal method'. Together they form a unique fingerprint.

Cite this