Research Grant Report
Three-Dimensional Morphological Characterization of CeO2 Nanoparticles by Transmission Electron Microscopy
2007 Volume 15 Pages 30-33
Details
2007 Volume 15 Pages 30-33
Colloidal cerium oxide (CeO2) nanoparticles prepared by hydrothermal synthesis were characterized by high-resolution transmission electron microscopy (HRTEM) and three-dimensional electron tomography (3D-ET). The HRTEM images showed that the CeO2 particles were slightly truncated revealing {220} facets. 3D-ET revealed that the CeO2 nanoparticles exposed predominantly {200} cubic facets. The nanoparticles were truncated at the corners exposing {111} octahedral facets and at the edges {220} dodecahedral facets. Furthermore, 3D-ET revealed the presence of some tetragonal-shaped CeO2 nanoparticles.
