Magnetism and phase transformation of Cu-Fe composite oxides prepared by the sol-gel route

被引：0
|
作者：
Z. H. Xiao
S. H. Jin
J. H. Wang
C. H. Liang
机构：
[1] Dalian University of Technology,Laboratory of Advanced Materials and Catalytic Engineering
[2] Chinese Academy of Sciences,Mössbauer Effect Data Center, Dalian Institute of Chemical Physics
来源：
Hyperfine Interactions | 2013年 / 217卷
关键词：
Cu-Fe composite oxides; Sol-gel; Phase transformation; CuFe; O; Mössbauer spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The Cu-Fe composite oxides were prepared by an epoxide assisted sol-gel route. The structural and magnetic properties of Cu-Fe composite oxides calcinated at different temperatures were determined by X-ray diffraction (XRD), Mössbauer spectroscopy measurements, and magnetic measurements. These results indicated that CuFe2O4 was only formed as calcination temperature increased to 500 °C, and a crystalline phase transformation from c-CuFe2O4 to t-CuFe2O4 occurred in elevating calcination temperature above it. All Cu-Fe oxides had ferromagnetic nature, and the significant superparamagnetic behavior was observed in the results of magnetic and Mössbauer spectroscopy measurements.
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页码：151 / 156
页数：5
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