摘要
The preparation and characterization of cerium oxide nano-powder has attracted much attention over the past few years due to their great potential in many fields. It is commonly used in glass, ceramics, fluorescence powder and catalyst etc.1. Cerium oxide was produced by oxalic acid decomposition in industry. Take this way, the products are pure but the size of powder is large ( ＞3 μ m )2. Up to now,various methods have been reported to synthesize ultra fine cerium oxide powders, such as homogeneous deposition method, hydrothermal method, sol-gel method and spray deposition method etc. 3-6. However, these methods are not convenient for synthesis of large amounts of powders because of the difficulty of technique and expensive equipment involved. Although sol-gel method is well suited to synthesize ultrafine powders, this reaction is always in high temperature.
