| 静电纺丝技术制备NiFe_2O_4纳米纤维的表征 |
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| 引用本文： | 董相廷,范立佳,王进贤,高续波,刘桂霞.静电纺丝技术制备NiFe_2O_4纳米纤维的表征[J].材料热处理学报,2010,31(4). |
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| 作者姓名： | 董相廷 范立佳 王进贤 高续波 刘桂霞 |
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| 作者单位： | 长春理工大学化学与环境工程学院,吉林,长春,130022 |
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| 基金项目： | 吉林省科技发展计划重大项目，教育部科学技术研究重点项目，长春市科技计划项目，吉林省教育厅"十一五"科学技术研究项目，吉林省环保局科技项目 |
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| 摘 要： | 采用溶胶-凝胶法与静电纺丝技术相结合制备了PVP/Ni(NO3)2+Fe(NO3)3]复合纳米纤维,在一定温度下进行热处理,得到尖晶石结构的NiFe2O4纳米纤维。利用TG-DTA、XRD、FTIR、SEM、TEM等分析手段对样品的组成及结构进行表征。TG-DTA分析表明,PVP/Ni(NO3)2+Fe(NO3)3]复合纳米纤维的热处理温度高于450℃以后,质量恒定,总失重率为87.8%。XRD与FTIR分析表明,热处理温度高于600℃时,复合纳米纤维已经完全转变成尖晶石结构的NiFe2O4纳米纤维。SEM分析表明,所制备的PVP/Ni(NO3)2+Fe(NO3)3]复合纤维直径在250～300nm之间,NiFe2O4纳米纤维直径约100nm,长度大于200μm。对NiFe2O4纳米纤维的形成机理进行了探讨。
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| 关 键 词： | 铁氧体 纳米纤维 静电纺丝技术 |
Characterization of NiFe2O4 nanofibers prepared by electrospinning technique |
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| DONG Xiang-ting,FAN Li-jia,WANG Jin-xian,GAO Xu-bo,LIU Gui-xia.Characterization of NiFe2O4 nanofibers prepared by electrospinning technique[J].Transactions of Materials and Heat Treatment,2010,31(4). |
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| Authors: | DONG Xiang-ting FAN Li-jia WANG Jin-xian GAO Xu-bo LIU Gui-xia |
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| Abstract: | PVP/Ni(NO3)2 +Fe(NO3)3]composite nanofibers were prepared by combination of electrospinning and sol-gle method.The spinel-typed NiFe2O4 nanofibers were obtained by calcination of the composite nano fibers at definite temperatures and were characterized by TG-DTA,XRD,FTIR,SEM and TEM.TG-DTA analysis indicates that the mass of the PVP/Ni(NO3)2 + Fe(NO3)3]composite nanofibers keeps constant above 450℃,and the total weight loss rate is 87.8%.XRD and FTIR analysis reveals that spinel-typed NiFe2O4 nanofibers are completely formed above 600℃.SEM observation manifests that the diameter of the composite fibers is 250-300 nm.The diameter of NiFe2O4 nanofibers is about 100 nm,and the length is greater than 200 μm.The formation mechanism of the NiFe2O4 nanofibers is also discussed. |
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| Keywords: | NiFe2O4 NiFe2O4 ferrite material nanofiber electrospinning |
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