| 静电纺丝法制备的Co0.6Ni0.3Cu0.1Fe2O4和Co0.6Ni0.3Zn0.1Fe2O4纳米纤维的结构及磁性能 |
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| 引用本文： | 戴剑锋,田西光,闫兴山,李维学,王青.静电纺丝法制备的Co0.6Ni0.3Cu0.1Fe2O4和Co0.6Ni0.3Zn0.1Fe2O4纳米纤维的结构及磁性能[J].材料导报,2017,31(22):30-34, 59. |
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| 作者姓名： | 戴剑锋 田西光 闫兴山 李维学 王青 |
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| 作者单位： | 1. 甘肃省省部共建有色金属先进加工与再利用国家重点实验室 ,兰州730050;兰州理工大学理学院 ,兰州730050;2. 兰州理工大学理学院 ,兰州,730050 |
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| 基金项目： | 国家自然科学基金(11664023) |
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| 摘 要： | 采用静电纺丝技术制备出表面光滑、直径均匀的Co_(0.6)Ni_(0.3)Cu_(0.1)Fe_2O_4/PVP和Co_(0.6)Ni_(0.3)Zn_(0.1)Fe_2O_4/PVP纳米纤维前驱丝,经500~900℃煅烧后得到Co_(0.6)Ni_(0.3)Cu_(0.1)Fe_2O_4和Co_(0.6)Ni_(0.3)Zn_(0.1)Fe_2O_4纳米纤维。用TG-DSC、XRD、SEM及VSM现代测试分析手段对Co_(0.6)Ni_(0.3)Cu_(0.1)Fe_2O_4和Co_(0.6)Ni_(0.3)Zn_(0.1)Fe_2O_4纳米纤维的结构、形貌及磁学性能进行测试表征。结果表明:在空气气氛中经500~900℃煅烧后可得到纯尖晶石相、结晶度良好的纳米纤维或短纤维;当温度为700℃时,Co_(0.6)Ni_(0.3)Cu_(0.1)Fe_2O_4和Co_(0.6)Ni_(0.3)Zn_(0.1)Fe_2O_4纳米纤维的形貌细长而光滑且直径相对均匀,大约为80nm;此时Co_(0.6)Ni_(0.3)Cu_(0.1)Fe_2O_4纳米纤维则保有较高的剩磁比(M_r/M_s)及矫顽力,分别为0.56和1 088.87Oe。在500℃、600℃、700℃、800℃、900℃煅烧后,Co_(0.6)Ni_(0.3)Zn_(0.1)Fe_2O_4纳米纤维的饱和磁化强度分别比Co_(0.6)Ni_(0.3)Cu_(0.1)Fe_2O_4纳米纤维增大了14.5%、7%、16%、10.7%、8%,而矫顽力则分别降低了38%、51%、50%、46%、46.7%。两种纳米纤维的饱和磁化强度及矫顽力存在差异,为CoNi铁氧体在电磁方面的应用提供了很好的参考。
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| 关 键 词： | 静电纺丝 纳米纤维 矫顽力 磁性能 |
Structure and Magnetic Properties of Electrospun Co0.6Ni0.3Cu0.1Fe2O4 and Co0.6Ni0.3Zn0.1Fe2O4 Nanofibers |
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| DAI Jianfeng,TIAN Xiguang,YAN Xingshan,LI Weixue and WANG Qing.Structure and Magnetic Properties of Electrospun Co0.6Ni0.3Cu0.1Fe2O4 and Co0.6Ni0.3Zn0.1Fe2O4 Nanofibers[J].Materials Review,2017,31(22):30-34, 59. |
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| Authors: | DAI Jianfeng TIAN Xiguang YAN Xingshan LI Weixue and WANG Qing |
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| Affiliation: | State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou 730050;School of Sciences, Lanzhou University of Technology, Lanzhou 730050,State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou 730050;School of Sciences, Lanzhou University of Technology, Lanzhou 730050,School of Sciences, Lanzhou University of Technology, Lanzhou 730050,School of Sciences, Lanzhou University of Technology, Lanzhou 730050 and School of Sciences, Lanzhou University of Technology, Lanzhou 730050 |
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| Abstract: | In this paper ,the precursor of Co0 .6 Ni0 .3 Cu0 .1 Fe2 O4/PVP and Co0 .6 Ni0 .3 Zn0 .1 Fe2 O4/PVP nanofibers with uniform diameter and smooth surface were prepared by electrospinning technique .Then the Co0 .6 Ni0 .3 Cu0 .1 Fe2 O4/PVP and Co0 .6 Ni0 .3 Zn0 .1-Fe2 O4/PVP nanofibers were obtained via heat treatment at 500—900 ℃ .The phase ,morphology ,structure and magnetic properties of the resultant Co0 .6 Ni0 .3 Cu0 .1 Fe2 O4 and Co0 .6 Ni0 .3 Zn0 .1 Fe2 O4 nanofibers were characterized by TG-DSC ,XRD ,SEM and VSM respectively .The results show that the pure phase and well crystallized Co0.6Ni0.3Cu0.1Fe2O4 and Co0.6Ni0.3Zn0.1Fe2O4nanofibers or staple fibers can be obtained after heat treatment in the air by heat treatment at 500—900 ℃ .When the temperature is at 700 ℃ ,the diameter of Co0.6 Ni0.3 Cu0.1 Fe2O4 and Co0.6 Ni0.3 Zn0.1 Fe2O4 nanofibers with smooth surface is about 80 nm ,and moreover ,the Co0.6Ni0.3Cu0.1Fe2O4 nanofibers retain a high remanence ratio (Mr/Ms) and a coercivity of 0 .56 and 1088 .87 Oe respectively .At 500 ℃ ,600 ℃ ,700 ℃ ,800 ℃ ,900 ℃ ,Co0 .6 Ni0 .3 Zn0 .1 Fe2 O4 nanofibers exhibit the intensities of saturation magnetization which are 14 .5% ,7% ,16% ,10 .7% ,8% higher than those of Co0 .6 Ni0 .3 Cu0 .1 Fe2 O4 nanofibers respectively ,as well as the coercive forces which are 38% ,51% ,50% ,46% ,46 .7% lower than Co0 .6 Ni0 .3 Cu0 .1 Fe2 O4 nanofibers respectively .The differences of saturation magnetization and coercivity of the two nanofibers provide a good reference for electromagnetic applications of CoNi ferrite . |
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| Keywords: | electrospinning nanofibers coercive force magnetic property |
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