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新型氧离子导体La1.84R0.16Mo1.7W0.3O8.92（R=Ca^2＋、Sr^2＋、Ba^2＋）的制备及其电性能
  • ISSN号：1001-9731
  • 期刊名称：《功能材料》
  • 时间：0
  • 分类：O614.33[理学—无机化学;理学—化学]
  • 作者机构：[1]长春工业大学化学与生命科学学院,吉林长春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,吉林长春130022
  • 相关基金：国家自然科学基金资助项目（20671088,20871023）;吉林省科技发展计划基金资助项目（20070510）
作者： 周德凤[1], 叶俊峰[1], 朱建新[1], 孟健[2]
关键词： 氧离子导体, 固体电解质, 放电等离子烧结, 电导率, oxide-ion conductor, solid slate electrolyte, park-plasma sintering, conductivity.
中文摘要：

采用溶胶凝胶方法制备Sm掺杂CeO2粉体材料，用放电等离子烧结（SPS）方法和常规烧结方法（CS）进行压片烧制。比较两种烧结方法对材料结构与性能的影响。通过X-射线衍射（XRD）、场发射扫描电镜（FE-SEM）等手段对氧化物进行结构表征，交流阻抗谱测试电性能。结果表明，两种烧结方法所得样品均呈现单一的立方莹石结构；SPS烧结样品的晶粒尺寸和密度大干CS烧结样品，SPS烧结样品的晶粒电导率、晶界电导率及总电导率均高于CS烧结样品；550℃时SPS和CS烧结样品的总电导率分别为2．27s／m和1．87s／m。放电等离子烧结法是在较低温度下实现快速烧结，制备致密化固体电解质材料的一种有效方法。

英文摘要：

The Sm doped CeO2 powder material prepared with sol and gel, is sintered with Spark plasma sintering （SPS） and conventional sintered （CS） respectively to compare the differences of the two methods. The structures and ionic conductivities are characterized with X-ray Diffraction （XRD）, field-emission scanning electron microscopy （FE-SEM） and electrochemical impedance spectroscopy （EIS）. Tbe results show that all the materials are single-phase with a cubic fluorite structure; the grain size and density of the SPS samples are larger than those of CS sample while the grain, edge and over-all conductivities of SPS sample are larger than that of CS samples. At 550 ℃, the over-all conductivity of SPS and CS is 2.27 s/m and 1.87 s/m respective. It can be concluded that SPS is more effective, which can be used at low temperature to prepare the densification solid electrolytes.

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期刊信息
  • 《功能材料》
  • 北大核心期刊（2011版）
  • 主管单位:重庆材料研究院
  • 主办单位:重庆材料研究院
  • 主编：黄伯云
  • 地址：重庆北碚区蔡家工业园嘉德大道8号
  • 邮编：400707
  • 邮箱：gnclwb@126.com
  • 电话：023-68264739
  • 国际标准刊号：ISSN：1001-9731
  • 国内统一刊号：ISSN：50-1099/TH
  • 邮发代号:78-6
  • 获奖情况:
  • 2008、2011年连续获中国精品科技期刊,2010获重庆市双十佳期刊
  • 国内外数据库收录:
  • 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,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:30166