A simple one-pot self-assembly route to nanoporous and monodispersed Fe3O4 particles with oriented attachment structure and magnetic property

被引:180
作者
Zhu, Yufang [1 ]
Zhao, Wenru [1 ]
Chen, Hangrong [1 ]
Shi, Jianlin [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
关键词
D O I
10.1021/jp0676843
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Nanoporous and monodispersed Fe3O4 aggregated spheres with high surface area and oriented attachment structure have been successfully prepared by a polyol reduction process. The structure and morphology of the Fe3O4 particles were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N-2 adsorption-desorption technique. The spherical aggregates are formed by the assembling among the Fe3O4 primary nanoparticles (5 nm), and the average size of the spherical particles is around 100 nm. The nanopores are less than 3 nm in the aggregated spheres. Besides, the magnetic properties of these nanoporous particles are also investigated and the magnetization saturation value is about 42.8 emu/g.
引用
收藏
页码:5281 / 5285
页数:5
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