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高温高压合成的Ce1-xEuxO2-δ固溶体的价态和输运性质研究

The Valence and Transport Property Studies for the Solid Solution Ce1-x EuxO2-δ Synthesized by High-temperature and High-pressure

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【作者】 车裕禄李莉萍李广社吕喆林晓敏向军苏文辉

【Author】 CHE Yu Lu 1, LI Li Ping 1,2* , LI Guang She 1, LU Zhe 1, LIN Xiao Min 1, XIANG Jun 1, SU Wen Hui 1,2,3 [WT5”BX](1. Department of Physics, 2. Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Cha

【机构】 吉林大学物理系吉林大学物理系!吉林大学无机合成与制备化学教育部重点实验室长春130023长春130023中国科学院国际材料物理中心沈阳110015

【Abstract】 The solid solutions Ce 1- x Eu x O 2- δ ( x =0\^10—0\^50) were synthesized by high temperature and high pressure. The XRD measurement showed that the solid solution was crystallized in cubic fluorite type structure and the lattice parameter increased with the content of Eu increasing up to x =0.4. The solution limit was \%ca.\% 0.4 under the condition of 3.6 GPa, 840—1 020 ℃. The XPS data showed that the Eu ions are Eu 3+ and trace of Ce 4+ ions were reduced to Ce 3+ ions during synthesis of high temperature and high pressure. The ionic conduction for Ce 0.8 Eu 0.2 O 2- δ was measured by impedance spectroscopy and it was found that the activation energy was 1.07 eV and the conductivity was 3.43×10 -5 S·cm -1 at 550 ℃.

【基金】 国家自然科学基金 !(批准号 :1980 40 0 5 );吉林大学无机合成与制备化学教育部重点实验室基金!资助
  • 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2001年03期
  • 【分类号】O611
  • 【被引频次】4
  • 【下载频次】70
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