| 초록 |
Magnetite (α-Fe3O4) core / polymer shell nanoparticles were successfully synthesized by a nanoparticle templating method. The resol-type, phenolic resin precursor was prepared by the reaction between phenol and formaldehyde, and then mixed with magnetite nanoparticles in ethanol, resulting in the formation of the complex magnetite core/polymer shell nanoparticles. These core-shell nanoparticles were slowly heated and annealed at high temperature to convert the polymer phase into the magnetite core/carbon shell nanoparticles. Hollow carbon nanoparticles were obtained by chemical etching the magnetite core in acidic solution. The chemical structure, composition and morphology were characterized by transmission and scanning electron microscopy and X-ray diffraction |
