Synthesis of Nanocrystalline Ce0.8Sm0.2O1.9 by Citrate Gel Method

摘要：

　　A citrate gel method was applied to synthesize Ce0.8Sm0.2O1.9 powders by using cerium and samarium nitrates as raw materials and citric acid as complexing agent.It was shown that Ce0.8Sm0.2O1.9 phase was formed when the decomposition of the dried gel completed at 500 ℃.The crystallite size of the synthesized powders calcined at 500 ℃ for 2 h is 5-10 nm.The powders can be easily sintered in air to yield over 97 % relative density at 1250 ℃,which is significantly lower than sintering temperature of over 1500℃ required by the doped ceria powders prepared via conventional ceramic techniques.

关键词： Doped ceria ceramics Citrate gel Electron microscopy

作者: Xiangfeng Guan Yanan Wang Heping Zhou Lihua Zhou

作者单位: State Key Laboratory of New Ceramics and Fine Processing,Tsinghua University,Beijing 100084,China State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 247-249

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）