期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 134, 期 2-3, 页码 1097-1101出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2012.03.118
关键词
Ceramics; Nanostructures; Surfaces; Magnetic properties
资金
- National Science Fund of China [11074101, 51171075]
- Fundamental Research Funds for the Central Universities [Lzujbky-2011-54]
Cu1-xZnxFe2O4 (0 <= x <= 1) nanofibers with continuous and fibrous morphology have been prepared by electrospinning combined with sot-gel method. The effect of Zn substitution on structure, morphology and magnetic properties were studied extensively. Scanning electron microscope and transmission electron microscope results reveal that Zn substitution strongly improves the poor morphology of the CuFe2O4 nanofibers. It was found that with increasing Zn content, the saturation magnetization initially increases and then decreases with a maximum value of 58.4 emu g(-1) at x = 0.4, whereas the coercivity and square ratio decrease monotonously. Interestingly, the magnetic easy axis of the Cu0.6Zn0.4Fe2O4 nanofibers is not totally along the long axis of the nanofibers, which might due to the loosely connected nanoparticles and/or the dipolar interactions between these nanofibers. (c) 2012 Elsevier B.V. All rights reserved.
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