| La_（0．5）Sr_（0．5）CoO_3电极材料的制备与结构研究 |
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| 引用本文： | 李远强,邱泰,何旭初,周宛玲,徐洁.La_（0．5）Sr_（0．5）CoO_3电极材料的制备与结构研究[J].电子元件与材料,1995(6). |
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| 作者姓名： | 李远强 邱泰 何旭初 周宛玲 徐洁 |
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| 作者单位： | 南京化工大学材料科学与工程系 |
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| 摘 要： | 采用化学共沉淀法合成了超细均匀的Ｌａ０．５Ｓｒ０．５ＣｏＯ３，复合氧化物粉末，并研究了合成粉末的特性和烧结体的结构特征。在１１００～１２００℃保温３ｈ烧成，可获得相对密度＞９６％的Ｌａ０．５Ｓｒ０．５ＣｏＯ３电极材料。Ｘ射线分析表明，Ｌａ０．５Ｓｒ０．５ＣｏＯ３烧结体的相组成主要为立方钙钛矿型结构，此外还有一些由氧空位造成的畸变钙钛矿型的四方相结构。
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| 关 键 词： | 钴酸锶镧，电极材料，晶相结构，超细粉末 |
Preparation and Structure of La_(0.5)Sr_(0.5)CoO_3 as Electrode Material |
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| Li Yuanqiang, Qiu Tai, He Xuchu, Zhou Wanling, Xu Jie.Preparation and Structure of La_(0.5)Sr_(0.5)CoO_3 as Electrode Material[J].Electronic Components & Materials,1995(6). |
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| Authors: | Li Yuanqiang Qiu Tai He Xuchu Zhou Wanling Xu Jie |
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| Affiliation: | Li Yuanqiang; Qiu Tai; He Xuchu; Zhou Wanling; Xu Jie |
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| Abstract: | A uniform and ultrafine powder of La0.5Sr0.5CoO3 has been prepared with coprecipitation method. The sinterability of the powder and the structure of the sintered powder has been investigated. A electrode material with a density of >96% of theoretic density can be obtained by sintering at ll00 to 1200℃ for three hours. X-ray diffraction analysis indicates that the sintered La0.5Sr0.5CoO3 is of cubic peroskite phases plus some tetragonal phases (distorted perovskite) arising from oxygen vacancies formed in perovskite. |
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| Keywords: | cobalt strontium lanthanum oxide electrode crystalstructure ultrafine powder |
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