Abstract:
Hollow nanoparticles of silicon dioxide (SiO$_2$) have been obtained using Cu/SiO$_2$ core-shell nanoparticles as precursors. An original technique based on heating the precursor nanoparticles to $T$ = 400$^\circ$C followed by a nanochemical reaction of copper oxide separation from hollow silica particles has been proposed and implemented for the first time. The obtained hollow SiO$_2$ nanoparticles have been studied by transmission electron microscopy. Mechanisms involved in the formation of hollow silica nanoparticles are discussed.
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