| 废旧锂离子电池溶胶-凝胶法制备钴铁氧体研究 |
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| 引用本文： | 席国喜,侯进才,王霖,席晓丽,蔺松波.废旧锂离子电池溶胶-凝胶法制备钴铁氧体研究[J].河南师范大学学报(自然科学版),2012,40(3):88-91. |
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| 作者姓名： | 席国喜 侯进才 王霖 席晓丽 蔺松波 |
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| 作者单位： | 1. 河南师范大学化学与环境科学学院河南省环境污染控制重点实验室,河南新乡,453007
2. 驻马店高级技工学校,河南驻马店,463000 |
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| 基金项目： | 国家自然科学基金，河南省重点科技攻关项目 |
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| 摘 要： | 利用废旧锂离子电池溶解液为原料,以硝酸为溶解酸,柠檬酸铵为凝胶剂,采用溶胶-凝胶法制备出钴铁氧体,并对制备条件进行了优化.借助于XRD,SEM,EDS和VSM等手段分别对产品的晶态、形貌、组成和磁性能进行了表征.结果表明:以硝酸作溶解酸溶解锂离子电池,采用柠檬酸铵为凝胶剂,凝胶化过程中pH=6.50时,所得产品具有较好的磁性能,此条件下制得产品的饱和磁化强度Ms为76.43A.m2.kg-1,剩余磁化强度Mr为38.57A.m2.kg-1,矫顽力Hc为105.23kA.m-1.
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| 关 键 词： | 废旧锂离子电池 钴铁氧体 溶胶-凝胶法 制备 |
Preparation of Cobalt Ferrites from Spent Lithium-Ion Batteries with Sol-gel Method |
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| XI Guo-xi
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HOU Jin-cai
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WANG Lin
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XI Xiao-li
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LIN Song-bo.Preparation of Cobalt Ferrites from Spent Lithium-Ion Batteries with Sol-gel Method[J].Journal of Henan Normal University(Natural Science),2012,40(3):88-91. |
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| Authors: | XI Guo-xi HOU Jin-cai WANG Lin XI Xiao-li LIN Song-bo |
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| Institution: | 1(1.Key Laboratory for Environmental Pollution Control of Henan,Chemistry and Environmental Science College, Henan Normal University,Xinxiang 453007,China;2.Zhumadian Senior Technical School,Zhumadian 463000,China) |
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| Abstract: | Using dissolution of spent lithium-ion battery as raw material,nitrate as melting acid and ammonium citrate as gel,cobalt ferrites are prepared with sol-gel method and conditions of preparation are optimized.The crystalline state,topogram,composition and magnetic performance of products are expressed by XRD,SEM,EDS and VSM.It shows that using nitric acid to dissolve lithium-ion battery and ammonium citrate as gel,the crystalline state of cobalt ferrites is prepared well at pH=6.50 in the process of gelation.The saturation magnetization(Ms),remnant magnetization(Mr),and coercivity(Hc) of the product synthesized under these conditions are determined to be 76.43 A·m2·kg-1,38.57 A·m2·kg-1 and 105.23 kA·m-1 respectively. |
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| Keywords: | spent lithium-ion battery cobalt ferrites sol-gel preparation |
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