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| Mo的掺杂对Ce0.8Gd0.2O1.9烧结温度及电性能的影响 | |
| 引用本文： | 周德凤,夏燕杰,梁 鹏,孟 健.Mo的掺杂对Ce0.8Gd0.2O1.9烧结温度及电性能的影响[J].无机化学学报,2008,24(2):324-328. |
| 作者姓名： | 周德凤 夏燕杰 梁 鹏 孟 健 |
| 作者单位： | 1. 长春工业大学生物工程学院,长春,130012 2. 辽东学院化工与材料学院,丹东,118003 3. 中国科学院长春应用化学研究所稀土化学与物理重点实验室,长春,130022 |
| 基金项目： | 国家自然科学基金 , 吉林省科技发展计划 , 吉林省教育厅科学技术研究项目 |
| 摘 要： | Ce0.8Gd0.2O1.9 ceramics were synthesized by sol-gel method and the effect of MoO3 addition on the sintering temperature, microstructure and electrical properties was examined. The structures and ionic conductivities were characterized by TG/DTA, XRD, field-emission scanning electron microscopy (FE-SEM) and electrochemical impedance spectroscopy (EIS). The results showed that Mo-doped ceramics exhibited viscous flow, which reduces friction of the particles, promots mass diffusivity of the matrix grain boundary mobility, and thus enhances further densification during subsequent sintering. The conductivities of grain boundary and grain interior increased with the decreasing of the grain boundary resistance. With Mo-dopant, the grain interior conductivity increased from 1.27×10-3 S·cm-1 to 5.46×10-3 S·cm-1, and the grain boundary conductivity increased from 1.02×10-3 S·cm-1 to 2.89×10-3 S·cm-1 at 600 ℃ for Ce0.8Gd0.2O1.9. |
| 关 键 词： | 固体电解质 电导率 晶界 掺杂 |
| 文章编号： | 1001-4861（2008）02-0324-05 |
| 收稿时间： | 2007-09-24 |
| 修稿时间： | 2007-12-15 |
Effects of Mo-dopant on Sintering and Grain Boundary Conductivity of Ce0.8Gd0.2O1.9 |
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| ZHOU De-Feng,XIA Yan-Jie,LIANG Peng and MENG Jian.Effects of Mo-dopant on Sintering and Grain Boundary Conductivity of Ce0.8Gd0.2O1.9[J].Chinese Journal of Inorganic Chemistry,2008,24(2):324-328. | |
| Authors: | ZHOU De-Feng XIA Yan-Jie LIANG Peng and MENG Jian |
| Abstract: | |
| Keywords: | solid state electrolyte conductivity grain boundary doping |
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