Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of ?-Fe2O3 nanoparticles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00397844" target="_blank" >RIV/68378271:_____/13:00397844 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jmmm.2013.02.051" target="_blank" >http://dx.doi.org/10.1016/j.jmmm.2013.02.051</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmmm.2013.02.051" target="_blank" >10.1016/j.jmmm.2013.02.051</a>

Result language
angličtina
Original language name
Effect of hydrophobic coating on the magnetic anisotropy and radiofrequency heating of ?-Fe2O3 nanoparticles
Original language description
Hydrophobic (oleic acid) coating effect on the magnetic properties of maghemite(?-Fe2O3) nanoparticles investigated. Particles prepared by a novel bi-phasic co-precipitation way and their properties compared with uncoated particles and particles preparedby a standard single-phase way. Oleic acid coated particles had a mean diameter of 6nm when the two-phase precipitation procedure was used, compared to 12nm-nanoparticles prepared in a single phase under otherwise identical conditions. Super Quantum Interference Device measurements show superparamagnetism of the nanoparticles, with a saturation magnetization at 4K to be 66.4 emu/g and 89.0 emu/g for the coated nanoparticles obtained by two-and single-phase procedure, respectively. ZFC and FC curves reveal a dramatic shift in the blocking temp.of the coated particles,and a significant change in their anisotropy.Hydrophobic nanoparticles were able to form stable ferrofluids in a range of organic solvents and show good heating rates in a
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
—

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)