Plasma synthesis of Fe- and Co-based nanoparticles in low-pressure discharge

Investor logo
Investor logo

Warning

This publication doesn't include Faculty of Sports Studies. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

ZELINA Peter KUDRLE Vít JAŠEK Ondřej SYNEK Petr DAVID Bohumil PIZÚROVÁ Naděžda SCHNEEWEISS Oldřich

Year of publication 2010
Type Article in Proceedings
Conference Potential and applications of surface nanotreatment of polymers and glass : Book of Extended Abstracts
MU Faculty or unit

Faculty of Science

Citation
Field Plasma physics
Keywords iron nanoparticles; iron pentacarbonyl; plasma; low-pressure discharge; microwave discharge
Description Recently, iron-based nanoparticles have attracted much attention due to their unique magnetic, physical and chemical properties which offer significant advantages over corresponding bulk materials. We focus on the synthesis of iron-based nanoparticles in a powder form by the plasmochemical method. A surface-wave discharge was sustained in low-pressure argon by 2.45 GHz microwaves. Properties of the discharge were analysed by optical emission spectroscopy and digital photography. The nanopowder captured on filters was investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). We used iron pentacarbonyl Fe(CO)5 as a precursor. The powder consisted of nanoparticles containing mainly ferrite alpha-Fe and magnetite Fe3O4. Size of synthesised nanoparticles was 9 - 14 nm. Since the ferrite nanoparticles tend to oxidise rapidly, we are trying to passivate them by slow oxidation or by introducing cobalt precursor in order to prepare non-oxidising FeCo nanoparticles.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.

More info