Structural aspects of stabilization of magnetic fluids by mono-carboxylic acids

Avdeev, M.V.; Bica, D.; Vekas, L.; Aksenov, V.L.; Feoktystov, A.; Rosta, L.; Haramus, V.M.; Willumeit, R.

Journalpaper

Structural aspects of stabilization of magnetic fluids by mono-carboxylic acids

Abstract

The structure of magnetic fluids (magnetite in decahydronaphtalene) stabilized with saturated mono-carboxylic acids of different chain lengths (lauric, myristic, palmitic and stearic acids) is studied by means of magnetization analysis and small-angle neutron scattering. It is shown that magnetite nanoparticles are dispersed in the carrier approximately with the same size distribution whose mean value and width are significantly less as compared to the classical stabilization with non-saturated oleic acid. The found thickness of the surfactant shell around magnetite is analyzed with respect to stabilizing properties of mono-carboxylic acids.

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URL: https://publications.hereon.de/id/27072/
Authors:Avdeev, M.V., Bica, D., Vekas, L., Aksenov, V.L., Feoktystov, A., Rosta, L., Haramus, V.M., Willumeit, R.
Year:2009
In: Solid State Phenomena, Magnetism and Magnetic Materials
Volume:152-153
Pages:182 - 185
Publisher:Trans Tech Publications, Uetikon, Pfaffikon
Type:Journalpaper
ISSN: 1662-9779
Cite as: Avdeev, M.V.; Bica, D.; Vekas, L.; Aksenov, V.L.; Feoktystov, A.; Rosta, L.; Haramus, V.M.; Willumeit, R.: Structural aspects of stabilization of magnetic fluids by mono-carboxylic acids. In: Solid State Phenomena, Magnetism and Magnetic Materials. Vol. 152-153 (2009) 182 - 185. (DOI: 10.4028/www.scientific.net/SSP.152-153.182)