Paper Title:
Synthesis and Dispersion of Magnetic Nano-Particles by a Surfactant-Mediated Approach
  Abstract

Magnetic nano-particles of around 20nm synthesized by poly-ethylene glycol (PEG) and sodium oleate mediated approach show well stability without sediment during 6 months. Upon treated through the modification procedure, magnetic nano-particles have a weakly physical bond with PEG, meanwhile a strong bond with sodium oleate. Naked magnetic nano-particles present positive charges on the surface, while turn to be negative when modified with sodium oleate, which suggest that the hydrophilic carboxyl on the surface of the nano-particles is outward. Magnetic property of the nano-particles changes according to the concentrations of reactants and surfactant.

  Info
Periodical
Key Engineering Materials (Volumes 330-332)
Main Theme
Edited by
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
Pages
231-234
DOI
10.4028/www.scientific.net/KEM.330-332.231
Citation
P. Hou, J. Sun, S.B. Zhou, J. Weng, "Synthesis and Dispersion of Magnetic Nano-Particles by a Surfactant-Mediated Approach", Key Engineering Materials, Vols. 330-332, pp. 231-234, 2007
Online since
February 2007
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Price
$32.00
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