| 微波-模板法合成锂离子电池正极材料LiMn2O4机理的光谱学研究 |
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| 引用本文： | 杨书廷,董红玉,赵娜红.微波-模板法合成锂离子电池正极材料LiMn2O4机理的光谱学研究[J].光谱学与光谱分析,2005,25(12):1968-1971. |
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| 作者姓名： | 杨书廷 董红玉 赵娜红 |
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| 作者单位： | 河南师范大学化学与环境科学学院,河南,新乡,453007;河南省新能源材料工程研究中心,河南,新乡,453007;河南师范大学化学与环境科学学院,河南,新乡,453007;河南省新能源材料工程研究中心,河南,新乡,453007;河南师范大学化学与环境科学学院,河南,新乡,453007;河南省新能源材料工程研究中心,河南,新乡,453007 |
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| 基金项目： | 河南科技攻关项目（0124090205）资助 |
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| 摘 要： | 采用微波-PAM模板法合成了具有尖晶石结构的锰酸锂材料，利用动态红外光谱（FTIR）对该方法的反应机理进行了研究。在前驱体的制备和在LiMn2O4晶核形成过程中，由于聚丙烯酰胺与反应母体之间的弱键合作用，使其在晶粒生长过程中对LiMn2O4的团聚规律与缺陷结构起到重要调控作用。
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| 关 键 词： | 锰酸锂 微波-模板法 FTIR光谱 |
| 文章编号： | 1000-0593(2005)12-1968-04 |
| 收稿时间： | 2004-03-08 |
| 修稿时间： | 2004-06-16 |
Study on Microwave-Templated Synthesis Mechanism of LiMn2O4 by Infrared Spectroscopy |
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| YANG Shu-ting,DONG Hong-yu,ZHAO Na-hong.Study on Microwave-Templated Synthesis Mechanism of LiMn2O4 by Infrared Spectroscopy[J].Spectroscopy and Spectral Analysis,2005,25(12):1968-1971. |
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| Authors: | YANG Shu-ting DONG Hong-yu ZHAO Na-hong |
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| Institution: | 1. College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China; 2. Research Center of New Energy and Material, Xinxiang 453007, China |
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| Abstract: | In this paper, LiMn2O4 was synthesized by the microwave-template method, and the synthesis mechanism was studied by the in-situ FTIR. It was confirmed by the FTIR that polyacrylamide was decomposed gradually during the spinel LiMn2O4 preparation, and there was some chemical bond between the reactants and polyacrylamide in the precursors. Polyacrylamide acted as template in the course of the preparation of precursors and forming of spinel lithium manganese oxide compound. As a result of the certain chmical bond, the controlling and adjusting of the LiMn2O4 crystalline were realized, so that agglomeration and lacunae framework of the spinel was adjusted. |
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| Keywords: | LiMn2O4 Microwave-templated synthesis mechanism FTIR |
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