Magnetic Ni–Cu alloy nanocrystallites with a diameter of about 12 nm have been prepared
by a hydrothermal approach with polymer–surfactant complex association at
80 °C. XRD, TEM and ICP-AES were employed to characterize alloy nanocrystallites. The
magnetic properties of alloy nanocrystallites were measured using a vibrating sample
magnetometer (VSM). The influences of polymer–micelle association, temperature and
concentration of micelles on the formation of alloy are discussed. Polymer–micelle
association provides a way for Ni and Cu to be reduced simultaneously and then occupy
the Cu lattice to form Ni–Cu alloy nanocrystallites.
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