Free-Standing Ultrathin Cobalt Nanosheets Synthesized by Means of In Situ Reduction and Interface-Directed Assembly and Their Magnetic Properties

Graphical 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.