| Li4+xMxSi1-xO4(M＝Fe,Cr)离子导电材料的制备与电导性能研究 |
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| 引用本文： | 刘胜峰,韩粉女,韩效钊.Li4+xMxSi1-xO4(M＝Fe,Cr)离子导电材料的制备与电导性能研究[J].化学世界,2004,45(4):175-177,200. |
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| 作者姓名： | 刘胜峰 韩粉女 韩效钊 |
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| 作者单位： | 合肥工业大学化工学院,安徽,合肥,230009;合肥工业大学化工学院,安徽,合肥,230009;合肥工业大学化工学院,安徽,合肥,230009 |
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| 摘 要： | 采用溶胶凝胶法制备了Li4+xMxSi1-xO4(M=Fe,Cr)离子导体材料,并对样品的结构及其电导率用TG-DTA、XRD和交流阻抗仪进行了观察和测试。结果表明,采用该方法可大大降低材料的合成温度,且M(M=Fe,Cr)的掺入有利于提高材料的离子电导性。
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| 关 键 词： | 溶胶-凝胶法 离子导电导 Li4+xMxSi1xO4 |
| 文章编号： | 0367-6358(2004)04-0175-04 |
Studies on Synthesis of Li4+xMxSi1-xO4(M=Fe,Cr) Ion Conductor and Its Ionic Conductivity |
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| Abstract: | Li_(4+x)M_xSi_(1-x)O_4(M=Fe,Cr) ion conductor was prepared by sol-gel method. TG-DTA, XRD and A-C impedance technique were used to study the phase structure and ionic conductivity of samples. The results demonstrate that the preparation temperature of sol-gel method is lower than that of the solid state reaction method, and the ionic conductivity of Li_4SiO_4 can be increased by the dopants of Cr,Fe. |
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| Keywords: | sol-gel method Li_(4+x)M_xSi_(1-x)O_4 ionic conductivity |
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