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

• Published in: Journal of rare earths Vol. 28; no. 1; pp. 92 - 95
• Main Author: 郑颖平 王绍荣 王振荣 邬理伟 孙岳明
• Format: Journal Article
• Language: English
• Published: School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China%Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China 2010
• Subjects: acrylamide polymerization; sintering; solid oxide fuel cell; electrical conductivity; doped ceria; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(09)60058-2

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...