Platinum Immobilization on Iron Oxide Nanoparticles Surface under Sonication
A facile and environment-friendly sonochemical route to fabricate well-defined Fe3O4/Pt and γ-Fe2O3/Pt composite microspheres under mild conditions has been reported. The structure and morphology of the synthetic spherical-shaped Fe3O4/Pt and γ-Fe2O3/Pt products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) with selected area electron diffraction (SAED). The results revealed that the composites were spherical with diameter in the range of 50–80 nm and had an ordered face-centered cubic (fcc) structure of platinum. These nanocomposites with platinum-coated iron oxide can be applied in a variety of areas, including medicine, photonics, new functional device assemblies and catalysis especially for fabricating some magnetic-responsive catalyst.
Yanguo Shi and Jinlong Zuo
Q. G. He et al., "Platinum Immobilization on Iron Oxide Nanoparticles Surface under Sonication", Advanced Materials Research, Vols. 183-185, pp. 1989-1994, 2011