| 新型氧离子导体La_2Mo_2O_9 |
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| 引用本文： | 阮北,闫柏军,张家芸.新型氧离子导体La_2Mo_2O_9[J].化学进展,2010,22(1):44-50. |
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| 作者姓名： | 阮北 闫柏军 张家芸 |
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| 作者单位： | 北京科技大学冶金与生态工程学院;河北师范大学化学学院; |
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| 基金项目： | 国家自然科学基金项目(No.50604002)资助 |
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| 摘 要： | La2Mo2O9是一种具有高离子导电性的新型氧离子导体,其氧离子电导率在1073K时高达0.06S/cm,与YSZ在1273K时的电导率相当。这种高的离子导电性使它在中温固体氧化物燃料电池、氧传感器、透氧膜、固态离子器件等领域有着重要的潜在应用前景。本文从La2Mo2O9的结构、性质、氧离子扩散机理及其掺杂改性4个方面综述了近年来La2Mo2O9基固体电解质的研究热点和新进展,为该固体电解质材料的研究提供了有价值的信息。
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| 关 键 词： | 钼酸镧 固体电解质 氧离子 固体氧化物燃料电池 掺杂 |
| 收稿时间： | 2009-03-02 |
| 修稿时间： | 2009-04-09 |
Novel La2Mo2O9Oxide-Ion Conductor |
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| Ruan Bei,Yan Baijun,Zhang Jiayun.Novel La2Mo2O9Oxide-Ion Conductor[J].Progress in Chemistry,2010,22(1):44-50. |
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| Authors: | Ruan Bei Yan Baijun Zhang Jiayun |
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| Institution: | 1.School of Metallurgical and Ecological Engineering;University of Science and Technology Beijing;Beijing 100083;China;2.Department of Chemistry;Hebei Normal University;Shijiazhuang 050016;China |
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| Abstract: | La_2Mo_2O_9 is a novel type of oxide-ion conductor with high oxide-ion conductivity.Its conductivity is about 0.06 S/cm at 1 073K,which is comparable to that of yttria-stabilized zirconia at 1 273K.Consequently,it has potential applications in intermediate-temperature solid oxide fuel cells,oxygen sensors,oxygen permeable membrane,solid-state ionic devices,etc.In this paper,the recent research progresses regarding the structure,properties,doping,diffusion mechanism of oxide-ion in La_2Mo_2O_9 crystal are re... |
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| Keywords: | lanthanum molybdate solid electrolytes oxide-ion SOFCs doping |
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