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Sm，Pr掺杂CeO2和CeMoO15基固体电解质的结构与性能
  • ISSN号：0251-0790
  • 期刊名称：《高等学校化学学报》
  • 时间：0
  • 分类：O614.33[理学—无机化学;理学—化学]
  • 作者机构：[1]长春工业大学生物工程学院,长春130012, [2]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
  • 相关基金：国家自然科学基金（批准号：20331030,20671088）资助.
作者： 周德凤[1], 叶俊峰[1], 李东风[1], 姜新华[1], 孟健[2]
关键词： 固体电解质, 电导率, 晶界, Solid electrolyte , Conductivity , Grain boundary
中文摘要：

采用溶胶凝胶法制备了Sm和Pr掺杂的CeO2和CeMoO15基固体电解质，通过X射线衍射（XRD）、拉曼光谱（Raman）、场发射扫描电镜（FE—SEM）等手段对氧化物结构进行了分析，用交流阻抗谱测试了其电性能，并比较了不同基体及其掺杂体系的结构与电性能．结果表明，Ce6MoO15基掺杂体系的导电性能高于CeO2基掺杂体系；元素Mo的加入使Ce6MoO15基材料的晶粒尺寸增大，晶界相成分减少，材料的晶界电导率增加，600℃以下材料导电性能明显提高；Pr的掺入减小了材料的晶粒尺寸，提高了材料的晶界电导率．

英文摘要：

Sm and Pr doped CeO2 and Ce6MoO15 based materials were synthesized by sol-gel method. The structure of the powders were characterized by X-ray diffraction（ XRD）, Raman spectra, field emission scanning electron microscopy（FE-SEM） and the electrical conductivity of the samples was investigated by AC impedance spectroscopy. By comparing the structure and electrical properties of different systems, it could be concluded that the electrical property of Ce6MoO15 based system is better than that of CeO2 system. The added Mo element resulted in the increase of gain size and improved the grain boundary conductivity notably below 600 ℃, while the Pr dopant induced the smaller grain size and improved the grain boundary conductivity of the materials.

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期刊信息
  • 《高等学校化学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中华人民共和国教育部
  • 主办单位:吉林大学 南开大学
  • 主编：周其凤
  • 地址：吉林大学南胡校区
  • 邮编：130012
  • 邮箱：cjcu@jlu.edu.cn
  • 电话：0431-88499216
  • 国际标准刊号：ISSN：0251-0790
  • 国内统一刊号：ISSN：22-1131/O6
  • 邮发代号:12-40
  • 获奖情况:
  • 首届及第二届国家期刊奖,连续两届“百种中国杰出学术期刊”,中国期刊方阵“双高”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国科学引文索引（扩展库）,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘,中国北大核心期刊（2000版）
  • 被引量:50676