Synthesis and characterization of nanometric magnetite coated by oleic acid and the surfactant CTAB

dc.creatorALMAZAN CELIS, JONATHAN; 628729
dc.creatorOLEA MEJIA, OSCAR FERNANDO; 170933
dc.creatorCABRAL PRIETO, AGUSTIN; 8534
dc.creatorGARCIA SOSA, IRMA MARIA ENGRACIA; 123150
dc.creatorDERAT, RAUL;#0000-0001-5777-1648
dc.creatorBaggio Saitovitch, Elisa;#0000-0003-4082-8585
dc.creatorAlzamora Camarena, Mariella;#0000-0002-1198-7168
dc.creatorALMAZAN CELIS, JONATHAN
dc.creatorOLEA MEJIA, OSCAR FERNANDO
dc.creatorCABRAL PRIETO, AGUSTIN
dc.creatorGARCIA SOSA, IRMA MARIA ENGRACIA
dc.creatorDERAT, RAUL
dc.creatorBaggio Saitovitch, Elisa
dc.creatorAlzamora Camarena, Mariella
dc.date2018-03-06T17:28:59Z
dc.date2018-03-06T17:28:59Z
dc.date2017-02-27
dc.identifier0304-3843
dc.identifierhttp://hdl.handle.net/20.500.11799/72310
dc.descriptionFor the intermediate and largest particles a mixture of magnetite and maghemite phases were produced as the saturation magnetization values of MS ∼ 60 emu/g indicated; these values were measured for most samples, independently of the coating surfactant concentration, and according to the ZFC-FC curves the blocking temperatures were 225K and 275K for the smallest and largest magnetite nanoparticles, respectively. The synthesis method was highly reproducible.
dc.descriptionNanometric magnetite (nm-Fe3O4) particles were prepared by the reverse co-precipitation synthesis method, obtaining particle sizes that ranged from 4 to 8.5 nm. In their synthesis, the concentration of iron salts of ferric nitrate, Fe(NO3)3⋅9H2O, and ferrous sulfate, FeSO4⋅7H2O, were varied relative to the chemical reaction volume and by using different surfactants such as oleic acid (OA) and hexadecyltrimethylammonium bromide (CTAB). The nm-Fe3O4 particles were characterized by transmission electron microscopy (TEM), Mössbauer spectroscopy (MS), magnetic and X-ray diffraction (XRD) measurements.
dc.languageeng
dc.publisherSpringer
dc.rightsopenAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectMagnetite
dc.subjectBIOLOGÍA Y QUÍMICA
dc.titleSynthesis and characterization of nanometric magnetite coated by oleic acid and the surfactant CTAB
dc.typeArtículo
dc.typearticle


Este ítem pertenece a la siguiente institución