Prodotti della ricerca
| Titolo: | Spherical nanoporous assemblies of iso-oriented cobalt ferrite nanoparticles:synthesis, microstructure and magnetic properties |
| Autori: | |
| Data di pubblicazione: | 2008 |
| Rivista: | |
| Abstract: | Nanoporous spherical assemblies of iso-oriented cobalt ferrite nanoparticles with a high surface area were prepared via a normal micelles process. The spherical magnetic assemblies were coated with a silica layer through an inverse micelles route. The microstructure and morphology were studied by X-ray diffraction, transmission electron microscopy and N 2-physisorption techniques. The primary CoFe 2O 4 nanocrystalline particles (∼7 nm) assemble into spherical nanoporous aggregates with an average size of about 50-60 nm and the coating process leads to core-shell nanostructures with an amorphous 7-8 nm thick silica shell that covers the spherical assemblies homogeneously. The magnetic properties of both uncoated and silica-coated nanostructures were also investigated |
| Handle: | http://hdl.handle.net/11584/96736 |
| Tipologia: | 1.1 Articolo in rivista |
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