H L Niu et al 2004 Nanotechnology 15 1054 doi:10.1088/0957-4484/15/8/034
Hydrothermal formation of magnetic Ni–Cu alloy nanocrystallites at low temperatures
H L Niu, Q W Chen1, Y S Lin, Y S Jia, H F Zhu and M Ning
Show affiliationsMagnetic 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.
- PACS
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81.07.Bc Nanocrystalline materials
75.75.+a Magnetic properties of nanostructures
68.37.Lp Transmission electron microscopy (TEM)
82.30.Nr Association, addition, insertion, cluster formation
- Subjects
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Surfaces, interfaces and thin films
- Dates
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Issue 8 (August 2004)
Received 24 March 2004
Published 21 June 2004
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Hydrothermal formation of magnetic Ni–Cu alloy nanocrystallites at low temperatures
H L Niu et al 2004 Nanotechnology 15 1054
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