Synthesis and characterization of Ce_(0.8)Sm_(0.2)O_(1.9) nanopowders using an acrylamide polymerization process  

作　　者：郑颖平 王绍荣 王振荣 邬理伟 孙岳明 

机构地区：[1]School of Chemistry and Chemical Engineering,Southeast University [2]Shanghai Institute of Ceramics,Chinese Academy of Sciences

出　　处：《Journal of Rare Earths》2010年第1期92-95,共4页稀土学报（英文版）

基　　金：supported by the Scientific and Technological Development Plan of Jiangsu Province (BE2007014);the Natural Science Foundation of Jiangsu Province (BK2009293);National Basic Research Program of China (2007CB936300)

摘　　要：Ce0.8Sm0.2O1.9(SDC) nanopowders were synthesized by an acrylamide polymerization process.The XRD results showed that SDC powders prepared at 700 °C possessed a cubic fluorite structure.Transmission electron microscopy(TEM) indicated that the particle sizes of powders were in the range of 10-15 nm.A 98.3% of theoretical density was obtained when the SDC pellets were sintered at 1350 °C for 5 h,indicating that the powders had good sinterability.The conductivity of the sintered SDC ceramics was 0.019 S/cm at 6...Ce0.8Sm0.2O1.9(SDC) nanopowders were synthesized by an acrylamide polymerization process.The XRD results showed that SDC powders prepared at 700 °C possessed a cubic fluorite structure.Transmission electron microscopy(TEM) indicated that the particle sizes of powders were in the range of 10-15 nm.A 98.3% of theoretical density was obtained when the SDC pellets were sintered at 1350 °C for 5 h,indicating that the powders had good sinterability.The conductivity of the sintered SDC ceramics was 0.019 S/cm at 6...

关 键 词：acrylamide polymerization doped ceria solid oxide fuel cell SINTERING electrical conductivity rare earths 

分 类 号：O614.332[理学—无机化学]