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Journal of NanomaterialsVolume 2010 2010, Article ID 184137, 5 pages

Research Article

School of Applied Physics, Faculty of Science and Technology, National University of Malaysia UKM, Bangi, 43600 Selangor Darul Ehsan, Malaysia

Faculty of Engineering, Nottingham University, Jalan Broga, Semenyih, 43500 Selangor, Malaysia

Low Dimensional Materials Research Centre, Physics Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

Received 11 October 2009; Accepted 8 May 2010

Academic Editor: Michael Harris

Copyright © 2010 G. H. Mohamed Saeed et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Magnetic Ni-rich Ni–Cu nanoparticles with Ni : Cu mass ratio S of 2.0 and 2.6 were prepared using a mixture of polyoxyethylene 10 isooctylphenyl ether Triton X-100 and sodium dodecyl sulfate SDS in a mild hydrothermal condition at 95. X-ray diffractometry XRD showed that the nanoparticles prepared at possessed Ni–Cu alloy characteristic whereas the characteristic was absent at . The XRD data was enhanced by Fourier transform infrared spectroscopy FTIR which exhibited metal-metal Ni–Cu band at 455 . Based on transmission electron microscopy TEM, the average particle sizes for the nanoparticles prepared at and 2.6 were in the range of 19–23 nm. The as-prepared nanoparticles exhibited paramagnetic behaviour measured using a vibrating sample magnetometer VSM and the specific saturation magnetization decreased at the higher concentration of Ni.

Author: G. H. Mohamed Saeed, S. Radiman, S. S. Gasaymeh, H. N. Lim, and N. M. Huang



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