Abstract
Nanocolloids of the intermetallic β-CoAl phase were prepared by a soft organomeiallic route. They were fully characterized by (HR)TEM, EDX, WAXS, XAS and SQUID magnetometry. Their exposure to air led to an increased saturation magnetization in agreement with Co/Al segregation and the formation of Co/Al2O3 nanocomposite, Furthermore, the βCoAl nanoparticles could be used as seeds to grow an aluminum, overlayer, which passivated the alloyed core against oxidation. These nanoparticles yielded stable colloidal solutions in aromatic solvents.
Original language | English (US) |
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Pages (from-to) | 1599-1603 |
Number of pages | 5 |
Journal | European Journal of Inorganic Chemistry |
Issue number | 11 |
DOIs | |
State | Published - Apr 2010 |
Externally published | Yes |
Keywords
- Alloys
- Core-shell nanoparticles
- Nanoparticles
- Passivation
- Synthetic methods
ASJC Scopus subject areas
- Inorganic Chemistry