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).
Highlights
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)
We report an important advance that allows the fabrication of a large amount of osmium metal nanoparticles (MNPs) of controlled sizes and without destruction of the graphitic support structure, through irradiation by a widely spread electron beam of a TEM to illuminate the entire TEM grid (3 × 3 mm[2], Fig. S1†)
Summary
ISSN 1477-9226 COMMUNICATION Giovanni Costantini, Peter J.
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