A Simple One-Pot Self-Assembly Route to Nanoporous and Monodispersed Fe 3 O 4 Particles with Oriented Attachment Structure and Magnetic Property
2007; American Chemical Society; Volume: 111; Issue: 14 Linguagem: Inglês
10.1021/jp0676843
ISSN1932-7455
AutoresYufang Zhu, Wenru Zhao, Hangrong Chen, Jianlin Shi,
Tópico(s)Characterization and Applications of Magnetic Nanoparticles
ResumoNanoporous 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 N2 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.
Referência(s)