戴剑锋,刘鹏,王青,李维学.一维NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝的结构和磁性能[J].稀有金属材料与工程,2019,48(5):1539~1543.[Dai Jianfeng,Liu Peng,Wang Qing,Li Weixue.Structure and magnetic properties of one-dimensional NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)ferrite nanowires[J].Rare Metal Materials and Engineering,2019,48(5):1539~1543.]
一维NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝的结构和磁性能
投稿时间:2017-10-18  修订日期:2017-12-08
中文关键词:  镍铁氧体  稀土掺杂  静电纺丝  纳米丝  磁性能
基金项目:国家自然科学基金资助(项目号11664023)
中文摘要:
      采用溶胶—凝胶法、静电纺丝技术和热处理技术相结合制备了一维NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝。利用X射线衍射仪(XRD)、傅立叶变换红外光谱仪(FT-IR)、扫描电子显微镜(SEM)和振动样品磁强计(VSM)对NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝的结构、形貌和磁性能进行表征。结果表明,NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝表面光滑、直径均匀、连续,直径约60 nm。掺杂Pr3+,Nd3+,Sm3+均没有改变NiFe2O4的尖晶石结构,掺杂均降低了NiFe2O4的结晶度,晶粒尺寸D从44.8 nm减小到33.8 nm。NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝都表现出软磁特性。NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)纳米丝的饱和磁化强度(Ms)分别为39.58 emu.g-1,41.10 emu.g-1,34.23 emu.g-1;矫顽力(Hc)分别为176.49 Oe,170.98 Oe,199.22 Oe;其中NiFe1.98Nd0.02O4纳米丝的Ms(41.10 emu.g-1)最大,矫顽力Hc(170.98 Oe)最小,软磁性能最好。
Structure and magnetic properties of one-dimensional NiFe1.98RE0.02O4(RE=Pr, Nd, Sm)ferrite nanowires
英文关键词:Nicker ferrite  rare earth substituted  electrospinning  nanowires  magnetic properties
英文摘要:
      The one-dimensional NiFe1.98RE0.02O4 (RE=Pr, Nd, Sm) nanowires have been fabricated by using sol-gel method, electrospinning technique and heat treatment technology. The structure, morphology and magnetic properties of NiFe1.98RE0.02O4 (RE=Pr, Nd, Sm) nanowires are characterized by X ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM). The result shows that the nanowires surface is smooth and the diameter of the nanowires is about 60 nm which is continuous and symmetrical. All samples present a pure phase spinel structure. Doping Pr3+, Nd3+ and Sm3+ respectively lower the crystallinity of NiFe2O4, and the grain size D decreases from 44.8 nm to 33.8 nm. NiFe1.98RE0.02O4 (RE=Pr, Nd, Sm) nanowires exhibit soft ferrimagnetic behavior. The saturation magnetization (Ms) of NiFe1.98RE0.02O4 (RE=Pr, Nd, Sm) nanowires are 39.58 emu·g-1, 41.10 emu·g-1, 34.23 emu·g-1; and the coercivity (Hc) of the nanowires are 176.49 Oe, 170.98 Oe, 199.22 Oe, respectively. Among them, the soft magnetic properties with the largest Ms (41.10 emu·g-1) and the smallest Hc (170.98 Oe) of NiFe1.98Nd0.02O4 nanowires is the best.
作者单位E-mail
戴剑锋 兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室 daijf@lut.cn 
刘鹏 兰州理工大学 理学院  
王青 兰州理工大学 理学院  
李维学 兰州理工大学 理学院  
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