Preparation and Characterization of Pr-CeO2 Nano-Powders by Co-Precipitation-Hydrothermal Method
Pr-CeO2 nano-size powders with the average crystallites size of 12 nm and particle size of 18 nm were prepared by a co-precipitation-hydrothermal method using Ce(NO3)3·6H2O,Pr6O11 as raw materials and ammonia as the precipitation agent.The influence of hydrothermal treatment time,hydrothermal treatment temperature on the average crystallites size,color of powders and the solubility of praseodymium were investigated.The synthesized powders were characterized by X-ray diffraction,transmission electron microscopy and color measurements.Results showed that after calcining at 800℃ for 4 hours,the color of the as-prepared powder changes from light red to red brown,the solubility of praseodymium and the crystallites size of the Pr-CeO2 powder both increase.
Co-precipitation Hydrothermal Pr-CeO2
Zhu Zhen-Feng Li Jing-Ping Yang Jun
School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xian,Shaanxi 710021,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
781-783
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）