6 Materialchemie
Filtern
Erscheinungsjahr
- 2019 (1) (entfernen)
Dokumenttyp
- Zeitschriftenartikel (1) (entfernen)
Sprache
- Englisch (1)
Referierte Publikation
- ja (1)
Schlagworte
- Metal carbides (1)
- Nanocasting (1)
- Nanoparticles (1)
- SAXS (1)
- Small-angle scattering (1)
Organisationseinheit der BAM
Metal carbides have shown great promise in a wide range of applications due to their unique catalytic, electrocatalytic and magnetic properties. However, the scalable production of dispersible metal carbide nanoparticles remains a challenge. Here, we report a simple and scalable route to dispersible iron carbide (Fe3C) nanoparticles. This uses MgO nanoparticles as a removable ‘cast’ to synthesize Fe3C nanoparticles from Prussian blue (KFeIII[FeII(CN)6]). Electron tomography demonstrates how nanoparticles of the MgO cast encase the Fe3C nanoparticles to prevent sintering and agglomeration during the high-temperature synthesis. The MgO cast is readily removed with ethylenediaminetetraacetic acid (EDTA) to generate Fe3C nanoparticles that can be used to produce a colloidal ferrofluid or dispersed on a support material.