| LixZryOz三元化合物的制备及表征 |
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| 引用本文： | 尹先升,何小丽,彭 洁,张钦辉,于建国.LixZryOz三元化合物的制备及表征[J].无机化学学报,2009,25(7):1221-1226. |
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| 作者姓名： | 尹先升 何小丽 彭 洁 张钦辉 于建国 |
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| 作者单位： | 华东理工大学化学工程学院化学工程联合国家重点实验室,上海,200237 |
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| 基金项目： | 国家自然科学基金，教育部科学研究重点项目，上海市科委纳米专项目 |
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| 摘 要： | 采用高温固相法制备了4种高纯度晶相组成的LixZryOz三元化合物,研究了焙烧温度、时间、反应物的种类和初始反应物物质的量比对产物组成的影响,进一步用XRD、SEM及BET分析方法对产物的晶相结构、表面形貌及比表面积进行了表征.实验结果表明,Li2CO3与ZrO2在适当条件下可以合成得到单斜相Li3ZrO3;以LiOH替代Li2CO3,在适当条件下可以分别合成得到四方相Li2ZrO3和三斜/单斜相Li6Zr2O7;进一步以Zr(NO3)4·5H2O代替Zr02,可将单斜相Li6Zr2O7的制备时间由96 h缩短至24 h.SEM照片显示产物硬团聚明显,粒径分布在1～10μm间,BET分析表明样品比表面积处于1.0～9.0 m2·g-1间分布,反应过程中锂的过量以及长时间高温焙烧是引起产物粒径长大和产生硬团聚的主要原因.
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| 关 键 词： | 锆酸锂 高纯度晶相 高温固相法 |
Synthesis and Characterization of LixZryOz Compounds |
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| YIN Xian-Sheng,HE Xiao-Li,PENG Jie,ZHANG Qin-Hui and YU Jian-Guo.Synthesis and Characterization of LixZryOz Compounds[J].Chinese Journal of Inorganic Chemistry,2009,25(7):1221-1226. |
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| Authors: | YIN Xian-Sheng HE Xiao-Li PENG Jie ZHANG Qin-Hui and YU Jian-Guo |
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| Institution: | State-Key Laboratory of Chemical Engineering, College of Chemical Engineering East China University of Science and Technology, Shanghai 200237,State-Key Laboratory of Chemical Engineering, College of Chemical Engineering East China University of Science and Technology, Shanghai 200237,State-Key Laboratory of Chemical Engineering, College of Chemical Engineering East China University of Science and Technology, Shanghai 200237,State-Key Laboratory of Chemical Engineering, College of Chemical Engineering East China University of Science and Technology, Shanghai 200237 and State-Key Laboratory of Chemical Engineering, College of Chemical Engineering East China University of Science and Technology, Shanghai 200237 |
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| Abstract: | |
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| Keywords: | lithium zirconate high-purity crystal-phase high-temperature solid-state reaction |
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