Heteronanopraticles of silicon dioxide with shell of Pt nanocrystals

Abstract

The results of preparation and study of core-shell heteronanoparticles are represented based on monodisperse spherical SiO₂ colloidal particles of 40, 120, 250, and 350 nm diameter and shell consisting of Pt nanocrystals. The heteronanoparticles surface structure and composition have been studied by transmission electron microscopy, photoelectron spectroscopy and X-ray diffraction.