Synthesis of nanocrystalline ceria by thermal decomposition and soft-chemistry methods

Nanocrystalline ceria synthesized by different methods have been characterized using TGA-EGA-MS, XRD and HR-TEM. All samples showed stable cubic fluorite structure down to 6 nm particle size. A reduction in lattice parameter with particle size was observed. Effects of synthesis conditions on nano-ceria and grain growth with annealing temperature are discussed. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.