Effect of Surfactants on Modifying the Surface of Magnetic Nanoparticles by Thermal Decomposition

Abstract:

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The nanosize magnetic particles were synthesized by thermal decomposition method with size distribution in the range of 10 ~ 30 nm. Different category and quantity of surfactants were used modifying the surface of the synthesized nanoparticles to control the particles’ shape and size. Multi-shapes, such as uniformity cubic, mixture of spherical and cubic, and the similar chick footmarks, were acquired in our experiment by different surfactants. It indicates the surfactant is a key factor for the size and shape of particles. The surfactants of PVP and oleylamine made the particle shape be uniformity cubic; However, the particle partly behaved as spherical shape in the case of using PVP and oleic acid as surfactants.

Info:

Periodical:

Advanced Materials Research (Volumes 335-336)

Edited by:

Yun-Hae Kim, Prasad Yarlagadda, Xiaodong Zhang and Zhijiu Ai

Pages:

951-955

DOI:

10.4028/www.scientific.net/AMR.335-336.951

Citation:

H. P. Shao et al., "Effect of Surfactants on Modifying the Surface of Magnetic Nanoparticles by Thermal Decomposition", Advanced Materials Research, Vols. 335-336, pp. 951-955, 2011

Online since:

September 2011

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Price:

$35.00

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