| 第 35 卷第 6 期 |  | Vol. 35 No. 6 | | 2005 年 12 月 | Dec 2005 |
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所属栏目：功能材料
室温固相制备尖晶石相LiMn_2O_4的工艺研究 |
| 刘立朋; 李亚东(苏州大学材料学院苏州大学材料研究中心; 江苏苏州) |
| 摘 要：以柠檬酸、氢氧化锂和醋酸锰为原料,采用室温固相法,先制备前驱体,然后再煅烧的方式得到了尖晶石相LiMn2O4产物。通过X射线衍射、透射电镜对尖晶石相LiMn2O4产物进行了分析,并对煅烧时间、分段煅烧等因素对室温固相工艺的影响进行了研究。结果表明,当通过延长高温的煅烧时间时,产物相对比较纯净,产物结构有了很大的提高,而通过先低温保温然后高温煅烧的方式,能够得到颗粒度尺寸均匀,更加纯净,结构也更好的LiMn2O4产物。 |
| 关键词：尖晶石相LiMn_2O_4; 室温固相法; 煅烧时间; 分段煅烧 |
| 中图分类号：TQ137.1+2 文献标识码：A 文章编号：1009-9212(2005)06-0054-03 |
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| Preparation of Spinel LiMn_2O_4 by Solid Method in Room Temperature |
| LIU Li-peng; LI Ya-dong （Material College and Material Research Centure of Suzhou Uiversity; Suzhou 215021; China） |
| Abstract：The precursors prepared from citric acid,lithium hydroxide and manganese acetate by solid method in room temperature.then,the precursors were calcined in high temperature and spinel mananese oxides were made.The character of LiMn2O4 is analyzed by XRD and TEM,at the same time,time and subsection of calcine which affluence the character of the production are also studied.Experiments show that more time of calcine in high temperature can improve the structure character and purity of LiMn2O4,and calcine by ste... |
| Key words：spinel lithium manganese oxide; solid method in room temperature; calcine time; calcine by steps |
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收稿日期：2005-12-10
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