Study on Rare Earth Electrolyte of Ce0.9RE0.1O2-δ (RE=Pr, Nd, Sm, Gd, Dy)
来源期刊：JOURNAL OF RARE EARTHS2003年第6期
论文作者：苏文辉 刘晓梅 冷静 梁路光 郭天才
Key words：energy materials; electrolyte; Ce0.9RE0.1O2-δ; high-temperature electrical conductivity; rare earths;
Abstract: The solid solutions Ce0.9RE0.1O2-δ(RE=Pr, Nd,Sm, Gd, Dy) were prepared by sol-gel method. The XRD measurement shows that the solid solution is crystallized in cubic fluorite-type structure and the cell volume of Ce 0.9RE0.1O2-δ decreases with the increase of atomic number of RE. The ionic conduction for Ce0.9RE0.1O2-δ was meas ured by impedance spectroscopy and Ce0.9Pr0.1O2-δ has better conductivity. The linear thermal expansion of Ce0.9RE0.1O2- δ decreases with the increase of atomic number of RE.
苏文辉1，刘晓梅1，冷静1，梁路光1，郭天才1
(1.Department of Physics, Jilin University, Changchun 130023, China;
2.Center for Condensed Matter Science and Technology, Harbin Institute o f Technology, Harbin 150001, China)
Abstract:The solid solutions Ce0.9RE0.1O2-δ(RE=Pr, Nd,Sm, Gd, Dy) were prepared by sol-gel method. The XRD measurement shows that the solid solution is crystallized in cubic fluorite-type structure and the cell volume of Ce 0.9RE0.1O2-δ decreases with the increase of atomic number of RE. The ionic conduction for Ce0.9RE0.1O2-δ was meas ured by impedance spectroscopy and Ce0.9Pr0.1O2-δ has better conductivity. The linear thermal expansion of Ce0.9RE0.1O2- δ decreases with the increase of atomic number of RE.
Key words:energy materials; electrolyte; Ce0.9RE0.1O2-δ; high-temperature electrical conductivity; rare earths;
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