On the possibility of using short chain length mono-carboxylic acids for stabilization of magnetic fluids

Short chain length mono-carboxylic acids (lauric and myristic acids) are used to coat magnetite nanoparticles in non-polar organic liquids, which results in highly stable magnetic fluids. The new fluids are compared with classical organic fluids stabilized by oleic acid (OA). Magnetic granulometry a...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-04, Vol.311 (1), p.6-9
Main Authors: Avdeev, Mikhail V., Bica, Doina, Vékás, Ladislau, Marinica, Oana, Balasoiu, Maria, Aksenov, Victor L., Rosta, László, Garamus, Vasil M., Schreyer, Andreas
Format: Article
Language:English
Subjects:
Ferrofluid
Magnetic fluids
Magnetization
Mono-carboxylic acids
Polarized neutrons
Small-angle neutron scattering
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Summary:Short chain length mono-carboxylic acids (lauric and myristic acids) are used to coat magnetite nanoparticles in non-polar organic liquids, which results in highly stable magnetic fluids. The new fluids are compared with classical organic fluids stabilized by oleic acid (OA). Magnetic granulometry and small-angle neutron scattering (polarized mode) reveal a great difference in the particle size distribution function for the studied magnetic fluids, particularly a decrease in the characteristic particle radius of magnetite when lauric and myristic acids are used instead of OA.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.11.155