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Published on: February 11, 2016
Synthesis and controlled growth of osmium nanoparticles by electron irradiation
Anaïs Pitto-Barry1, Luis M A Perdigao, Marc Walker
1Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK. G.Costantini@warwick.ac.uk P.J.Sadler@warwick.ac.uk N.Barry@warwick.ac.uk.
Abstract:
We have synthesised osmium nanoparticles of defined size (1.5-50 nm) on a B- and S-doped turbostratic graphitic structure by electron-beam irradiation of an organometallic osmium complex encapsulated in self-spreading polymer micelles, and characterised them by transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and atomic force microscopy (AFM) on the same grid. Oxidation of the osmium nanoparticles after exposure to air was detected by X-ray photoelectron spectroscopy (XPS).
