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Keywords:

  • cobalt;
  • interfaces;
  • magnetic properties;
  • nanostructures;
  • self-assembly
Thumbnail image of graphical abstract

Making a stand: By means of in situ reduction and self-assembly at an unconventional liquid–liquid interface, free-standing ultrathin cobalt nanosheets (CoNs) consisting of nanosized Co clusters were successfully synthesized (see figure). The as-prepared CoNs display ferromagnetic behavior and a large thermal irreversibility. This strategy has been used also in the synthesis of Fe and Ni nanosheets.