| 第 35 卷第 6 期 |  | Vol. 35 No. 6 | | 2005 年 12 月 | Dec 2005 |
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所屬欄目：功能材料
室溫固相制備尖晶石相LiMn_2O_4的工藝研究 |
| 劉立朋; 李亞?wèn)|(蘇州大學(xué)材料學(xué)院蘇州大學(xué)材料研究中心; 江蘇蘇州) |
| 摘 要：以檸檬酸、氫氧化鋰和醋酸錳為原料,采用室溫固相法,先制備前驅體,然后再煅燒的方式得到了尖晶石相LiMn2O4產(chǎn)物。通過(guò)X射線(xiàn)衍射、透射電鏡對尖晶石相LiMn2O4產(chǎn)物進(jìn)行了分析,并對煅燒時(shí)間、分段煅燒等因素對室溫固相工藝的影響進(jìn)行了研究。結果表明,當通過(guò)延長(cháng)高溫的煅燒時(shí)間時(shí),產(chǎn)物相對比較純凈,產(chǎn)物結構有了很大的提高,而通過(guò)先低溫保溫然后高溫煅燒的方式,能夠得到顆粒度尺寸均勻,更加純凈,結構也更好的LiMn2O4產(chǎn)物。 |
| 關(guān)鍵詞：尖晶石相LiMn_2O_4; 室溫固相法; 煅燒時(shí)間; 分段煅燒 |
| 中圖分類(lèi)號：TQ137.1+2 文獻標識碼：A 文章編號：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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