CeO 2 nanometer particles were synthesized by sol gel method,XRD analysis indicate that the systhesised CeO 2 particles are all cubic in structure,and the space group is O 5 hFm3m.

• 用溶胶凝胶法制备了CeO2纳米粒子，XRD分析表明，所合成的CeO2纳米粒子均为立方晶系，空间群为O5hFm3m。