期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 321, 期 8, 页码 1052-1057出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2008.10.022
关键词
Fe3O4@gamma-Fe2O3 core/shell nanomaterials; Calcine; Stability; Magnetic property; Photovoltage response
资金
- Jilin provincial science and technology department of China [20060569]
The surface structure of the iron oxide nanoparticles obtained by the co-precipitation method has been investigated, and a thin layer of alpha-FeOOH absorbed on surface of the nanoparticle is confirmed by analyses of Fourier transform infrared (FTIR), X-ray photoelectron spectra (XPS) and surface photovoltage spectroscopy (SPS). After annealed at 400 degrees C, the alpha-FeOOH can be converted to gamma-Fe2O3. The simple-annealed procedure resulted in the formation of Fe3O4@gamma-Fe2O3 core/shell structure with improved stability and a higher magnetic saturation value, and also the simple method can be used to obtain core/shell structure in other similar system. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据