Paper Title:
Influence of Surface Active Substances on Magnetic Properties of Goethite Nanoparticles
  Abstract

To receive monosized goethite (α-FeOOH) nanoparticles powders in the process of chemical precipitation of iron salt and alkali various surface active substances (SAS) with concentration of 0.3% were added to water: C12H25NaO4S (anion active), C12H38ClN (cation active) and EDTA – C10H14O8N2Na2 (complexon). It has been determined that the magnetic properties of the nanoparticles under investigation change in comparison with the nanoparticles obtained without SAS addition. In all the samples under study very interesting saturation magnetization temperature dependences have been obtained. They indicate the difference in goethite temperature phase transformations connected with various surface layers formed on the nanoparticles under SAS influence.

  Info
Periodical
Solid State Phenomena (Volume 170)
Edited by
J.-L. Bobet, B. Chevalier and D. Fruchart
Pages
160-164
DOI
10.4028/www.scientific.net/SSP.170.160
Citation
A. A. Novakova, A. R. Savilov, A.N. Antonov, T. S. Gendler, "Influence of Surface Active Substances on Magnetic Properties of Goethite Nanoparticles", Solid State Phenomena, Vol. 170, pp. 160-164, 2011
Online since
April 2011
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