Volume 30 Issue 10
Oct.  2004
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Zhang Yahui, Qi Xingyi, Guo Lin, et al. Self-assembly structure of CeO2 nanoparticles: synthesis, characterization and catalytic property[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 1021-1024. (in Chinese)
Citation: Zhang Yahui, Qi Xingyi, Guo Lin, et al. Self-assembly structure of CeO2 nanoparticles: synthesis, characterization and catalytic property[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 1021-1024. (in Chinese)

Self-assembly structure of CeO2 nanoparticles: synthesis, characterization and catalytic property

  • Received Date: 28 Apr 2004
  • Publish Date: 31 Oct 2004
  • A new approach to synthesis of self-assembly CeO2 nanoparticles by using microemulsion method was investigated. The structure of the product was characterized by the methods of X-ray diffraction (XRD), transmission electron microscopy (TEM), and extended X-ray absorption fine structure (EXAFS). XRD result indicates the face-center cubic(FCC) structure of the produced CeO2 nanoparticles. EXAFS shows that the oxygen coordination number around Ce in CeO2 nanoparticles decrease compared with the bulk CeO2, and the bond-length of Ce-O in CeO2 nanoparticles is obviously longer than that of bulk materials. The catalytic property of CeO2 on the decomposition of H2O2 was investdigated, and the results demonstrate that CeO2 nanoparticles have much stronger catalytic activity than bulk CeO2.

     

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